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897 lines
27 KiB
897 lines
27 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This is the text library for Chamilo.
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* It is loaded during the global initialization,
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* so the functions below are available everywhere.
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*/
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define('EXERCISE_NUMBER_OF_DECIMALS', 2);
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/* XML processing functions */
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// A regular expression for accessing declared encoding within xml-formatted text.
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// Published by Steve Minutillo,
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// http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss/
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define('_PCRE_XML_ENCODING', '/<\?xml.*encoding=[\'"](.*?)[\'"].*\?>/m');
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/**
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* This function strips all html-tags found in the input string and outputs a pure text.
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* Mostly, the function is to be used before language or encoding detection of the input string.
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*
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* @param string $string the input string with html-tags to be converted to plain text
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*
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* @return string the returned plain text as a result
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*/
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function api_html_to_text($string)
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{
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// These purifications have been found experimentally, for nice looking output.
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$string = preg_replace('/<br[^>]*>/i', "\n", $string);
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$string = preg_replace('/<\/?(div|p|h[1-6]|table|ol|ul|blockquote)[^>]*>/i', "\n", $string);
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$string = preg_replace('/<\/(tr|li)[^>]*>/i', "\n", $string);
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$string = preg_replace('/<\/(td|th)[^>]*>/i', "\t", $string);
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$string = strip_tags($string);
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// Line endings unification and cleaning.
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$string = str_replace(["\r\n", "\n\r", "\r"], "\n", $string);
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$string = preg_replace('/\s*\n/', "\n", $string);
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$string = preg_replace('/\n+/', "\n", $string);
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return trim($string);
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}
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/**
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* Detects encoding of html-formatted text.
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*
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* @param string $string the input html-formatted text
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*
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* @return string returns the detected encoding
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*/
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function api_detect_encoding_html($string)
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{
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if (@preg_match('/<head.*(<meta[^>]*content=[^>]*>).*<\/head>/si', $string, $matches)) {
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if (@preg_match('/<meta[^>]*charset=(.*)["\';][^>]*>/si', $matches[1], $matches)) {
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return api_refine_encoding_id(trim($matches[1]));
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}
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}
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return api_detect_encoding(api_html_to_text($string));
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}
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/**
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* Converts the text of a html-document to a given encoding, the meta-tag is changed accordingly.
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*
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* @param string $string the input full-html document
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* @param string the new encoding value to be set
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*/
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function api_set_encoding_html(&$string, $encoding)
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{
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$old_encoding = api_detect_encoding_html($string);
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if (@preg_match('/(.*<head.*)(<meta[^>]*content=[^>]*>)(.*<\/head>.*)/si', $string, $matches)) {
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$meta = $matches[2];
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if (@preg_match("/(<meta[^>]*charset=)(.*)([\"';][^>]*>)/si", $meta, $matches1)) {
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$meta = $matches1[1].$encoding.$matches1[3];
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$string = $matches[1].$meta.$matches[3];
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} else {
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$string = $matches[1].'<meta http-equiv="Content-Type" content="text/html; charset='.$encoding.'"/>'.$matches[3];
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}
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} else {
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$count = 1;
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if (false !== strpos('</head>', strtolower($string))) {
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$string = str_ireplace(
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'</head>',
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'<meta http-equiv="Content-Type" content="text/html; charset='.$encoding.'"/></head>',
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$string,
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$count
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);
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} else {
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$string = str_ireplace(
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'<body>',
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'<head><meta http-equiv="Content-Type" content="text/html; charset='.$encoding.'"/></head><body>',
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$string,
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$count
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);
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}
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}
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$string = api_convert_encoding($string, $encoding, $old_encoding);
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}
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/**
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* Returns the title of a html document.
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*
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* @param string $string the contents of the input document
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* @param string $output_encoding The encoding of the retrieved title.
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* If the value is not set, the system encoding is assumed.
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* @param string $input_encoding The encoding of the input document. If the value is not set, it is detected.
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*
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* @return string the retrieved title, html-entities and extra-whitespace between the words are cleaned
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*/
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function api_get_title_html(&$string, $output_encoding = null, $input_encoding = null)
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{
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if (@preg_match('/<head.+<title[^>]*>(.*)<\/title>/msi', $string, $matches)) {
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if (empty($output_encoding)) {
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$output_encoding = api_get_system_encoding();
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}
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if (empty($input_encoding)) {
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$input_encoding = api_detect_encoding_html($string);
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}
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return trim(
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@preg_replace(
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'/\s+/',
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' ',
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api_html_entity_decode(
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api_convert_encoding($matches[1], $output_encoding, $input_encoding),
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ENT_QUOTES,
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$output_encoding
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)
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)
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);
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}
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return '';
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}
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/**
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* Detects encoding of xml-formatted text.
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*
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* @param string $string the input xml-formatted text
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* @param string $default_encoding This is the default encoding to be returned
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* if there is no way the xml-text's encoding to be detected.
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* If it not spesified, the system encoding is assumed then.
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*
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* @return string returns the detected encoding
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*
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* @todo The second parameter is to be eliminated. See api_detect_encoding_html().
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*/
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function api_detect_encoding_xml($string, $default_encoding = null)
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{
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if (preg_match(_PCRE_XML_ENCODING, $string, $matches)) {
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return api_refine_encoding_id($matches[1]);
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}
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if (api_is_valid_utf8($string)) {
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return 'UTF-8';
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}
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if (empty($default_encoding)) {
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$default_encoding = _api_mb_internal_encoding();
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}
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return api_refine_encoding_id($default_encoding);
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}
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/**
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* Converts character encoding of a xml-formatted text.
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* If inside the text the encoding is declared, it is modified accordingly.
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*
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* @param string $string the text being converted
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* @param string $to_encoding the encoding that text is being converted to
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* @param string $from_encoding (optional) The encoding that text is being converted from.
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* If it is omited, it is tried to be detected then.
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*
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* @return string returns the converted xml-text
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*/
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function api_convert_encoding_xml($string, $to_encoding, $from_encoding = null)
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{
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return _api_convert_encoding_xml($string, $to_encoding, $from_encoding);
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}
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/**
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* Converts character encoding of a xml-formatted text into UTF-8.
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* If inside the text the encoding is declared, it is set to UTF-8.
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*
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* @param string $string the text being converted
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* @param string $from_encoding (optional) The encoding that text is being converted from.
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* If it is omited, it is tried to be detected then.
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*
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* @return string returns the converted xml-text
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*/
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function api_utf8_encode_xml($string, $from_encoding = null)
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{
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return _api_convert_encoding_xml($string, 'UTF-8', $from_encoding);
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}
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/**
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* Converts character encoding of a xml-formatted text from UTF-8 into a specified encoding.
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* If inside the text the encoding is declared, it is modified accordingly.
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*
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* @param string $string the text being converted
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* @param string $to_encoding (optional) The encoding that text is being converted to.
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* If it is omitted, the platform character set is assumed.
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*
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* @return string returns the converted xml-text
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*/
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function api_utf8_decode_xml($string, $to_encoding = 'UTF-8')
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{
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return _api_convert_encoding_xml($string, $to_encoding, 'UTF-8');
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}
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/**
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* Converts character encoding of a xml-formatted text.
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* If inside the text the encoding is declared, it is modified accordingly.
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*
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* @param string $string the text being converted
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* @param string $to_encoding the encoding that text is being converted to
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* @param string $from_encoding (optional) The encoding that text is being converted from.
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* If the value is empty, it is tried to be detected then.
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*
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* @return string returns the converted xml-text
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*/
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function _api_convert_encoding_xml(&$string, $to_encoding, $from_encoding)
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{
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if (empty($from_encoding)) {
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$from_encoding = api_detect_encoding_xml($string);
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}
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$to_encoding = api_refine_encoding_id($to_encoding);
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if (!preg_match('/<\?xml.*\?>/m', $string, $matches)) {
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return api_convert_encoding(
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'<?xml version="1.0" encoding="'.$to_encoding.'"?>'."\n".$string,
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$to_encoding,
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$from_encoding
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);
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}
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if (!preg_match(_PCRE_XML_ENCODING, $string)) {
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if (false !== strpos($matches[0], 'standalone')) {
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// The encoding option should precede the standalone option,
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// othewise DOMDocument fails to load the document.
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$replace = str_replace('standalone', ' encoding="'.$to_encoding.'" standalone', $matches[0]);
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} else {
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$replace = str_replace('?>', ' encoding="'.$to_encoding.'"?>', $matches[0]);
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}
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return api_convert_encoding(str_replace($matches[0], $replace, $string), $to_encoding, $from_encoding);
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}
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global $_api_encoding;
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$_api_encoding = api_refine_encoding_id($to_encoding);
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return api_convert_encoding(
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preg_replace_callback(
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_PCRE_XML_ENCODING,
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'_api_convert_encoding_xml_callback',
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$string
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),
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$to_encoding,
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$from_encoding
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);
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}
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/**
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* A callback for serving the function _api_convert_encoding_xml().
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*
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* @param array $matches input array of matches corresponding to the xml-declaration
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*
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* @return string returns the xml-declaration with modified encoding
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*/
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function _api_convert_encoding_xml_callback($matches)
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{
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global $_api_encoding;
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return str_replace($matches[1], $_api_encoding, $matches[0]);
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}
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/* Functions for supporting ASCIIMathML mathematical formulas and ASCIIsvg maathematical graphics */
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/**
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* Dectects ASCIIMathML formula presence within a given html text.
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*
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* @param string $html the input html text
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*
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* @return bool returns TRUE when there is a formula found or FALSE otherwise
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*/
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function api_contains_asciimathml($html)
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{
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if (!preg_match_all('/<span[^>]*class\s*=\s*[\'"](.*?)[\'"][^>]*>/mi', $html, $matches)) {
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return false;
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}
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foreach ($matches[1] as $string) {
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$string = ' '.str_replace(',', ' ', $string).' ';
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if (preg_match('/\sAM\s/m', $string)) {
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return true;
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}
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}
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return false;
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}
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/**
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* Dectects ASCIIsvg graphics presence within a given html text.
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*
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* @param string $html the input html text
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*
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* @return bool returns TRUE when there is a graph found or FALSE otherwise
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*/
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function api_contains_asciisvg($html)
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{
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if (!preg_match_all('/<embed([^>]*?)>/mi', $html, $matches)) {
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return false;
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}
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foreach ($matches[1] as $string) {
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$string = ' '.str_replace(',', ' ', $string).' ';
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if (preg_match('/sscr\s*=\s*[\'"](.*?)[\'"]/m', $string)) {
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return true;
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}
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}
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return false;
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}
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/**
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* Convers a string from camel case into underscore.
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* Works correctly with ASCII strings only, implementation for human-language strings is not necessary.
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*
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* @param string $string The input string (ASCII)
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*
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* @return string The converted result string
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*/
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function api_camel_case_to_underscore($string)
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{
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return strtolower(preg_replace('/([a-z])([A-Z])/', "$1_$2", $string));
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}
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/**
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* Converts a string with underscores into camel case.
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* Works correctly with ASCII strings only, implementation for human-language strings is not necessary.
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*
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* @param string $string The input string (ASCII)
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* @param bool $capitalise_first_char (optional)
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* If true (default), the function capitalises the first char in the result string
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*
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* @return string The converted result string
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*/
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function api_underscore_to_camel_case($string, $capitalise_first_char = true)
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{
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if ($capitalise_first_char) {
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$string = ucfirst($string);
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}
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return preg_replace_callback('/_([a-z])/', '_api_camelize', $string);
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}
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// A function for internal use, only for this library.
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function _api_camelize($match)
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{
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return strtoupper($match[1]);
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}
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/**
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* Truncates a string.
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*
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* @author Brouckaert Olivier
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*
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* @param string $text the text to truncate
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* @param int $length The approximate desired length. The length of the suffix below is to be added to
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* have the total length of the result string.
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* @param string $suffix a suffix to be added as a replacement
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* @param string $encoding (optional) The encoding to be used. If it is omitted,
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* the platform character set will be used by default.
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* @param bool $middle if this parameter is true, truncation is done in the middle of the string
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*
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* @return string truncated string, decorated with the given suffix (replacement)
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*/
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function api_trunc_str($text, $length = 30, $suffix = '...', $middle = false, $encoding = null)
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{
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if (empty($encoding)) {
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$encoding = api_get_system_encoding();
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}
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$text_length = api_strlen($text, $encoding);
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if ($text_length <= $length) {
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return $text;
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}
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if ($middle) {
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return rtrim(
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api_substr(
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$text,
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0,
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round($length / 2),
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$encoding
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)
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).
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$suffix.
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ltrim(
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api_substr(
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$text,
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-round($length / 2),
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$text_length,
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$encoding
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)
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);
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}
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return rtrim(api_substr($text, 0, $length, $encoding)).$suffix;
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}
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/**
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* Replace tags with a space in a text.
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* If $in_double_quote_replace, replace " with '' (for HTML attribute purpose, for exemple).
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*
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* @return string
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*
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* @author hubert borderiou
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*/
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function api_remove_tags_with_space($in_html, $in_double_quote_replace = true)
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{
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$out_res = $in_html;
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if ($in_double_quote_replace) {
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$out_res = str_replace('"', "''", $out_res);
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}
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// avoid text stuck together when tags are removed, adding a space after >
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$out_res = str_replace(">", "> ", $out_res);
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$out_res = strip_tags($out_res);
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return $out_res;
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}
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/**
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* @author Rewritten by Nathan Codding - Feb 6, 2001.
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* completed by Hugues Peeters - July 22, 2002
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*
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* Actually this function is taken from the PHP BB 1.4 script
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* - Goes through the given string, and replaces xxxx://yyyy with an HTML <a> tag linking
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* to that URL
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* - Goes through the given string, and replaces www.xxxx.yyyy[zzzz] with an HTML <a> tag linking
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* to http://www.xxxx.yyyy[/zzzz]
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* - Goes through the given string, and replaces xxxx@yyyy with an HTML mailto: tag linking
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* to that email address
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* - Only matches these 2 patterns either after a space, or at the beginning of a line
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*
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* Notes: the email one might get annoying - it's easy to make it more restrictive, though.. maybe
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* have it require something like xxxx@yyyy.zzzz or such. We'll see.
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*/
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/**
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* Callback to convert URI match to HTML A element.
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*
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* This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link * make_clickable()}.
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*
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* @since Wordpress 2.3.2
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*
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* @param array $matches single Regex Match
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*
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* @return string HTML A element with URI address
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*/
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function _make_url_clickable_cb($matches)
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{
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$url = $matches[2];
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if (')' == $matches[3] && strpos($url, '(')) {
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// If the trailing character is a closing parethesis, and the URL has an opening
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// parenthesis in it, add the closing parenthesis to the URL.
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// Then we can let the parenthesis balancer do its thing below.
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$url .= $matches[3];
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$suffix = '';
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} else {
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$suffix = $matches[3];
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}
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// Include parentheses in the URL only if paired
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while (substr_count($url, '(') < substr_count($url, ')')) {
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$suffix = strrchr($url, ')').$suffix;
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$url = substr($url, 0, strrpos($url, ')'));
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}
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$url = esc_url($url);
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if (empty($url)) {
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return $matches[0];
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}
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return $matches[1]."<a href=\"$url\" rel=\"nofollow\">$url</a>".$suffix;
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}
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/**
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* Checks and cleans a URL.
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*
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* A number of characters are removed from the URL. If the URL is for displaying
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* (the default behaviour) ampersands are also replaced. The 'clean_url' filter
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* is applied to the returned cleaned URL.
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*
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* @since wordpress 2.8.0
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*
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* @uses \wp_kses_bad_protocol() To only permit protocols in the URL set
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* via $protocols or the common ones set in the function.
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*
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* @param string $url the URL to be cleaned
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* @param array $protocols Optional. An array of acceptable protocols.
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* Defaults to 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher',
|
|
* 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn' if not set.
|
|
* @param string $_context Private. Use esc_url_raw() for database usage.
|
|
*
|
|
* @return string the cleaned $url after the 'clean_url' filter is applied
|
|
*/
|
|
function esc_url($url, $protocols = null, $_context = 'display')
|
|
{
|
|
//$original_url = $url;
|
|
if ('' == $url) {
|
|
return $url;
|
|
}
|
|
$url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\\x80-\\xff]|i', '', $url);
|
|
$strip = ['%0d', '%0a', '%0D', '%0A'];
|
|
$url = _deep_replace($strip, $url);
|
|
$url = str_replace(';//', '://', $url);
|
|
/* If the URL doesn't appear to contain a scheme, we
|
|
* presume it needs http:// appended (unless a relative
|
|
* link starting with /, # or ? or a php file).
|
|
*/
|
|
if (false === strpos($url, ':') && !in_array($url[0], ['/', '#', '?']) &&
|
|
!preg_match('/^[a-z0-9-]+?\.php/i', $url)) {
|
|
$url = 'http://'.$url;
|
|
}
|
|
|
|
return Security::remove_XSS($url);
|
|
}
|
|
|
|
/**
|
|
* Perform a deep string replace operation to ensure the values in $search are no longer present.
|
|
*
|
|
* Repeats the replacement operation until it no longer replaces anything so as to remove "nested" values
|
|
* e.g. $subject = '%0%0%0DDD', $search ='%0D', $result ='' rather than the '%0%0DD' that
|
|
* str_replace would return
|
|
*
|
|
* @since wordpress 2.8.1
|
|
*
|
|
* @param string|array $search The value being searched for, otherwise known as the needle.
|
|
* An array may be used to designate multiple needles.
|
|
* @param string $subject the string being searched and replaced on, otherwise known as the haystack
|
|
*
|
|
* @return string the string with the replaced svalues
|
|
*/
|
|
function _deep_replace($search, $subject)
|
|
{
|
|
$subject = (string) $subject;
|
|
|
|
$count = 1;
|
|
while ($count) {
|
|
$subject = str_replace($search, '', $subject, $count);
|
|
}
|
|
|
|
return $subject;
|
|
}
|
|
|
|
/**
|
|
* Callback to convert URL match to HTML A element.
|
|
*
|
|
* This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link * make_clickable()}.
|
|
*
|
|
* @since wordpress 2.3.2
|
|
*
|
|
* @param array $matches single Regex Match
|
|
*
|
|
* @return string HTML A element with URL address
|
|
*/
|
|
function _make_web_ftp_clickable_cb($matches)
|
|
{
|
|
$ret = '';
|
|
$dest = $matches[2];
|
|
$dest = 'http://'.$dest;
|
|
$dest = esc_url($dest);
|
|
if (empty($dest)) {
|
|
return $matches[0];
|
|
}
|
|
|
|
// removed trailing [.,;:)] from URL
|
|
if (true === in_array(substr($dest, -1), ['.', ',', ';', ':', ')'])) {
|
|
$ret = substr($dest, -1);
|
|
$dest = substr($dest, 0, strlen($dest) - 1);
|
|
}
|
|
|
|
return $matches[1]."<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret";
|
|
}
|
|
|
|
/**
|
|
* This functions cuts a paragraph
|
|
* i.e cut('Merry Xmas from Lima',13) = "Merry Xmas fr...".
|
|
*
|
|
* @param string The text to "cut"
|
|
* @param int Count of chars
|
|
* @param bool Whether to embed in a <span title="...">...</span>
|
|
* */
|
|
function cut($text, $maxchar, $embed = false): string
|
|
{
|
|
if (api_strlen($text) > $maxchar) {
|
|
if ($embed) {
|
|
return '<p title="'.$text.'">'.api_substr($text, 0, $maxchar).'...</p>';
|
|
}
|
|
|
|
return api_substr($text, 0, $maxchar).' ...';
|
|
}
|
|
|
|
return $text;
|
|
}
|
|
|
|
/**
|
|
* Show a number as only integers if no decimals, but will show 2 decimals if exist.
|
|
*
|
|
* @param mixed Number to convert
|
|
* @param int Decimal points 0=never, 1=if needed, 2=always
|
|
* @param string $decimalPoint
|
|
* @param string $thousandsSeparator
|
|
*
|
|
* @return mixed An integer or a float depends on the parameter
|
|
*/
|
|
function float_format($number, $flag = 1, $decimalPoint = '.', $thousandsSeparator = ',')
|
|
{
|
|
$flag = (int) $flag;
|
|
|
|
if (is_numeric($number)) {
|
|
if (!$number) {
|
|
$result = (2 == $flag ? '0.'.str_repeat('0', EXERCISE_NUMBER_OF_DECIMALS) : '0');
|
|
} else {
|
|
if (floor($number) == $number) {
|
|
$result = number_format(
|
|
$number,
|
|
(2 == $flag ? EXERCISE_NUMBER_OF_DECIMALS : 0),
|
|
$decimalPoint,
|
|
$thousandsSeparator
|
|
);
|
|
} else {
|
|
$result = number_format(
|
|
round($number, 2),
|
|
(0 == $flag ? 0 : EXERCISE_NUMBER_OF_DECIMALS),
|
|
$decimalPoint,
|
|
$thousandsSeparator
|
|
);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
}
|
|
|
|
// TODO: To be checked for correct timezone management.
|
|
/**
|
|
* Function to obtain last week timestamps.
|
|
*
|
|
* @return array Times for every day inside week
|
|
*/
|
|
function get_last_week()
|
|
{
|
|
$week = date('W');
|
|
$year = date('Y');
|
|
|
|
$lastweek = $week - 1;
|
|
if (0 == $lastweek) {
|
|
$week = 52;
|
|
$year--;
|
|
}
|
|
|
|
$lastweek = sprintf("%02d", $lastweek);
|
|
$arrdays = [];
|
|
for ($i = 1; $i <= 7; $i++) {
|
|
$arrdays[] = strtotime("$year"."W$lastweek"."$i");
|
|
}
|
|
|
|
return $arrdays;
|
|
}
|
|
|
|
/**
|
|
* Gets the week from a day.
|
|
*
|
|
* @param string Date in UTC (2010-01-01 12:12:12)
|
|
*
|
|
* @return int Returns an integer with the week number of the year
|
|
*/
|
|
function get_week_from_day($date)
|
|
{
|
|
if (!empty($date)) {
|
|
$time = api_strtotime($date, 'UTC');
|
|
|
|
return date('W', $time);
|
|
}
|
|
|
|
return date('W');
|
|
}
|
|
|
|
/**
|
|
* This function splits the string into words and then joins them back together again one by one.
|
|
* Example: "Test example of a long string"
|
|
* substrwords(5) = Test ... *.
|
|
*
|
|
* @param string
|
|
* @param int the max number of character
|
|
* @param string how the string will be end
|
|
*
|
|
* @return a reduce string
|
|
*/
|
|
function substrwords($text, $maxchar, $end = '...')
|
|
{
|
|
if (strlen($text) > $maxchar) {
|
|
$words = explode(" ", $text);
|
|
$output = '';
|
|
$i = 0;
|
|
while (1) {
|
|
$length = (strlen($output) + strlen($words[$i]));
|
|
if ($length > $maxchar) {
|
|
break;
|
|
} else {
|
|
$output = $output." ".$words[$i];
|
|
$i++;
|
|
}
|
|
}
|
|
} else {
|
|
$output = $text;
|
|
|
|
return $output;
|
|
}
|
|
|
|
return $output.$end;
|
|
}
|
|
|
|
function implode_with_key($glue, $array)
|
|
{
|
|
if (!empty($array)) {
|
|
$string = '';
|
|
foreach ($array as $key => $value) {
|
|
if (empty($value)) {
|
|
$value = 'null';
|
|
}
|
|
$string .= $key." : ".$value." $glue ";
|
|
}
|
|
|
|
return $string;
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Transform the file size in a human readable format.
|
|
*
|
|
* @param int $file_size Size of the file in bytes
|
|
*
|
|
* @return string A human readable representation of the file size
|
|
*/
|
|
function format_file_size($file_size)
|
|
{
|
|
$file_size = (int) $file_size;
|
|
if ($file_size >= 1073741824) {
|
|
$file_size = (round($file_size / 1073741824 * 100) / 100).'G';
|
|
} elseif ($file_size >= 1048576) {
|
|
$file_size = (round($file_size / 1048576 * 100) / 100).'M';
|
|
} elseif ($file_size >= 1024) {
|
|
$file_size = (round($file_size / 1024 * 100) / 100).'k';
|
|
} else {
|
|
$file_size = $file_size.'B';
|
|
}
|
|
|
|
return $file_size;
|
|
}
|
|
|
|
/**
|
|
* Converts an string CLEANYO[admin][amann,acostea]
|
|
* into an array:.
|
|
*
|
|
* array(
|
|
* CLEANYO
|
|
* admin
|
|
* amann,acostea
|
|
* )
|
|
*
|
|
* @param $array
|
|
*
|
|
* @return array
|
|
*/
|
|
function bracketsToArray($array)
|
|
{
|
|
return preg_split('/[\[\]]+/', $array, -1, PREG_SPLIT_NO_EMPTY);
|
|
}
|
|
|
|
/**
|
|
* @param string $string
|
|
* @param bool $capitalizeFirstCharacter
|
|
*
|
|
* @return mixed
|
|
*/
|
|
function underScoreToCamelCase($string, $capitalizeFirstCharacter = true)
|
|
{
|
|
$str = str_replace(' ', '', ucwords(str_replace('_', ' ', $string)));
|
|
|
|
if (!$capitalizeFirstCharacter) {
|
|
$str[0] = strtolower($str[0]);
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
/**
|
|
* @param string $value
|
|
*/
|
|
function trim_value(&$value)
|
|
{
|
|
$value = trim($value);
|
|
}
|
|
|
|
/**
|
|
* Strips only the given tags in the given HTML string.
|
|
*
|
|
* @param string $html
|
|
* @param array $tags
|
|
*
|
|
* @return string
|
|
*/
|
|
function strip_tags_blacklist($html, $tags)
|
|
{
|
|
foreach ($tags as $tag) {
|
|
$regex = '#<\s*'.$tag.'[^>]*>.*?<\s*/\s*'.$tag.'>#msi';
|
|
$html = preg_replace($regex, '', $html);
|
|
}
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Remove tags from HTML anf return the $in_number_char first non-HTML char
|
|
* Postfix the text with "..." if it has been truncated.
|
|
*
|
|
* @param string $text
|
|
* @param int $number
|
|
*
|
|
* @return string
|
|
*
|
|
* @author hubert borderiou
|
|
*/
|
|
function api_get_short_text_from_html($text, $number)
|
|
{
|
|
// Delete script and style tags
|
|
$text = preg_replace('/(<(script|style)\b[^>]*>).*?(<\/\2>)/is', "$1$3", $text);
|
|
$text = api_html_entity_decode($text);
|
|
$out_res = api_remove_tags_with_space($text, false);
|
|
$postfix = "...";
|
|
if (strlen($out_res) > $number) {
|
|
$out_res = substr($out_res, 0, $number).$postfix;
|
|
}
|
|
|
|
return $out_res;
|
|
}
|
|
|
|
/**
|
|
* Filter a multi-language HTML string (for the multi-language HTML
|
|
* feature) into the given language (strip the rest).
|
|
*
|
|
* @param string $htmlString The HTML string to "translate".
|
|
* Usually <p><span lang="en">Some string</span></p><p><span lang="fr">Une chaîne</span></p>
|
|
* @param string $language The language in which we want to get the
|
|
*
|
|
* @return string The filtered string in the given language, or the full string if no translated string was identified
|
|
*
|
|
*@throws Exception
|
|
*/
|
|
function api_get_filtered_multilingual_HTML_string($htmlString, $language = null)
|
|
{
|
|
if (true != api_get_configuration_value('translate_html')) {
|
|
return $htmlString;
|
|
}
|
|
$userInfo = api_get_user_info();
|
|
$languageId = 0;
|
|
if (!empty($language)) {
|
|
$languageId = api_get_language_id($language);
|
|
} elseif (!empty($userInfo['language'])) {
|
|
$languageId = api_get_language_id($userInfo['language']);
|
|
}
|
|
$languageInfo = api_get_language_info($languageId);
|
|
$isoCode = 'en';
|
|
|
|
if (!empty($languageInfo)) {
|
|
$isoCode = $languageInfo['isocode'];
|
|
}
|
|
|
|
// Split HTML in the separate language strings
|
|
// Note: some strings might look like <p><span ..>...</span></p> but others might be like combine 2 <span> in 1 <p>
|
|
if (!preg_match('/<span.*?lang="(\w\w)">/is', $htmlString)) {
|
|
return $htmlString;
|
|
}
|
|
$matches = [];
|
|
preg_match_all('/<span.*?lang="(\w\w)">(.*?)<\/span>/is', $htmlString, $matches);
|
|
if (!empty($matches)) {
|
|
// matches[0] are the full string
|
|
// matches[1] are the languages
|
|
// matches[2] are the strings
|
|
foreach ($matches[1] as $id => $match) {
|
|
if ($match == $isoCode) {
|
|
return $matches[2][$id];
|
|
}
|
|
}
|
|
// Could find the pattern but could not find our language. Return the first language found.
|
|
return $matches[2][0];
|
|
}
|
|
// Could not find pattern. Just return the whole string. We shouldn't get here.
|
|
return $htmlString;
|
|
}
|
|
|