diff --git a/main/inc/lib/fileManage.lib.php b/main/inc/lib/fileManage.lib.php
index 4c3ad77346..a604bcbce5 100755
--- a/main/inc/lib/fileManage.lib.php
+++ b/main/inc/lib/fileManage.lib.php
@@ -348,12 +348,19 @@ function getextension($filename)
 /**
  * Get a list of all PHP (.php) files in a given directory. Includes .tpl files
  * @param $base_path The base path in which to find the corresponding files
+ * @param $includeStatic Include static .html, .htm and .css files
  * @return array
  */
-function getAllPhpFiles($base_path)
+function getAllPhpFiles($base_path, $includeStatic = false)
 {
     $list = scandir($base_path);
     $files = [];
+    $extensionsArray = ['.php', '.tpl'];
+    if ($includeStatic) {
+        $extensionsArray[] = 'html';
+        $extensionsArray[] = '.htm';
+        $extensionsArray[] = '.css';
+    }
     foreach ($list as $item) {
         if (substr($item, 0, 1) == '.') {
             continue;
@@ -363,11 +370,11 @@ function getAllPhpFiles($base_path)
             continue;
         }
         if (is_dir($base_path.$item)) {
-            $files = array_merge($files, get_all_php_files($base_path.$item.'/'));
+            $files = array_merge($files, getAllPhpFiles($base_path.$item.'/', $includeStatic));
         } else {
             //only analyse php files
             $sub = substr($item, -4);
-            if ($sub == '.php' or $sub == '.tpl') {
+            if (in_array($sub, $extensionsArray)) {
                 $files[] = $base_path.$item;
             }
         }
diff --git a/tests/scripts/img/list_unused_img.php b/tests/scripts/img/list_unused_img.php
index 76848a51b9..4a537002d0 100644
--- a/tests/scripts/img/list_unused_img.php
+++ b/tests/scripts/img/list_unused_img.php
@@ -64,41 +64,6 @@ foreach ($unused as $term => $path) {
 }
 echo "</table>\n";
 
-/**
- * @param $base_path
- * @return array
- */
-function get_all_php_files($base_path)
-{
-    $list = scandir($base_path);
-    $files = array();
-    foreach ($list as $item) {
-        if (substr($item, 0, 1)=='.') {
-            continue;
-        }
-        $special_dirs = array(
-            api_get_path(SYS_TEST_PATH),
-            api_get_path(SYS_COURSE_PATH),
-            api_get_path(SYS_LANG_PATH),
-            api_get_path(SYS_ARCHIVE_PATH)
-        );
-        if (in_array($base_path.$item.'/', $special_dirs)) {
-            continue;
-        }
-        if (is_dir($base_path.$item)) {
-            $files = array_merge($files, get_all_php_files($base_path.$item.'/'));
-        } else {
-            //only analyse php files
-            $ext = substr($item, -4);
-            if (in_array($ext, array('.php', 'html', '.htm', '.css'))) {
-                  $files[] = $base_path.$item;
-            }
-        }
-    }
-    $list = null;
-    return $files;
-}
-
 /**
  * Get the list of available images
  * @param string $path The path to start the scan from
diff --git a/tests/scripts/img/list_used_img.php b/tests/scripts/img/list_used_img.php
index 007910c22a..b6e825dcde 100644
--- a/tests/scripts/img/list_used_img.php
+++ b/tests/scripts/img/list_used_img.php
@@ -19,7 +19,7 @@ $found_img = get_img_files($path);
 // now get all terms found in all PHP files of Chamilo (this takes some time and memory)
 $unexisting_img = array();
 $l = strlen(api_get_path(SYS_PATH));
-$files = get_all_php_files(api_get_path(SYS_PATH));
+$files = getAllPhpFiles(api_get_path(SYS_PATH), true);
 $counter = 0;
 foreach ($files as $file) {
   $shortfile = substr($file,$l);
@@ -77,27 +77,6 @@ echo "</table>\n";
 echo "Analysed files:<br />\n";
 print_r($files);
 
-
-function get_all_php_files($base_path) {
-    $list = scandir($base_path);
-    $files = array();
-    foreach ($list as $item) {
-    	if (substr($item,0,1)=='.') {continue;}
-        $special_dirs = array(api_get_path(SYS_TEST_PATH),api_get_path(SYS_COURSE_PATH),api_get_path(SYS_LANG_PATH),api_get_path(SYS_ARCHIVE_PATH));
-        if (in_array($base_path.$item.'/',$special_dirs)) {continue;}
-        if (is_dir($base_path.$item)) {
-        	$files = array_merge($files,get_all_php_files($base_path.$item.'/'));
-        } else {
-            //only analyse php files
-                $ext = substr($item,-4);
-        	if (in_array($ext,array('.php','html','.htm','.css'))) {
-                  $files[] = $base_path.$item;
-        	}
-        }
-    }
-    $list = null;
-    return $files;
-}
 function get_img_files($path) {
   $files = array();
   //We know there are max 3 levels