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-rw-r--r--admin/include/functions.php7
1 files changed, 6 insertions, 1 deletions
diff --git a/admin/include/functions.php b/admin/include/functions.php
index cd58d0822..6a5ed195e 100644
--- a/admin/include/functions.php
+++ b/admin/include/functions.php
@@ -17,11 +17,16 @@
$tab_ext_create_TN = array ( 'jpg', 'png', 'JPG', 'PNG' );
+// is_image returns true if the given $filename (including the path) is a
+// picture according to its format and its extension.
+// As GD library can only generate pictures from jpeg and png files, if you
+// ask if the filename is an image for thumbnail creation (second parameter
+// set to true), the only authorized formats are jpeg and png.
function is_image( $filename, $create_thumbnail = false )
{
global $conf, $tab_ext_create_TN;
- if ( is_file ( $filename ) )
+ if ( is_file( $filename ) )
{
$size = getimagesize( $filename );
// $size[2] == 1 means GIF