Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/reports/multiquery.lib.php

63 lines
1.6 KiB

<?php
// get fields informations
function multiquery_query($array) {
$result = array();
$field = 0;
for ($i = 0; $i <sizeof($array); $i++) {
// mysql handler
$result[$i]['mysql'] = mysql_query($array[$i]);
if (! $result[$i]['mysql'])
die("error in query $i : ".$array[$i]);
// fields
$result[$i]['num_fields'] = mysql_num_fields($result[$i]['mysql']);
for ($j = 0; $j < $result[$i]['num_fields']; $j++) {
$name = mysql_field_name($result[$i]['mysql'], $j);
$result['field'][$field]['query']=$i;
$result['field'][$field]['name']=$name;
$result['field'][$field]['id']=$j;
$result['field_assoc'][$name][$field];
$field++;
}
}
$result['num_queries'] = sizeof($array);
// rows
$numberOfResult = mysql_num_rows($result[0]['mysql']);
for ($i = 1; $i <$result['num_queries']; $i++)
if ($numberOfResult != mysql_num_rows($result[$i]['mysql']))
die("wrong number of row: $numberOfResult vs ".
mysql_num_rows($result[$i]['mysql'])." on query $i");
$result['num_rows'] = $numberOfResult;
$result['num_fields'] = $field;
return $result;
}
function multiquery_num_rows(&$mq_h) {
return $mq_h['num_rows'];
}
function multiquery_num_fields(&$mq_h) {
return $mq_h['num_fields'];
}
function multiquery_field_name(&$mq_h, $id) {
return $mq_h['field'][$id]['name'];
}
function multiquery_fetch_row(&$mq_h) {
$result = array();
$pos = 0;
for ($i = 0; $i < $mq_h['num_queries']; $i++) {
$row = mysql_fetch_row($mq_h[$i]['mysql']);
if (!$row) return false; // last line
for ($j = 0; $j < sizeof($row); $j++) {
$result[$pos] = $row[$j];
$pos++;
}
}
return $result;
}