Skip to main content

php validate image type

You can validate image in php, this way:

<?php
    $img = "banner.gif"; // an image
    $info = getimagesize($img);
    print image_type_to_mime_type($info[2]);
?>

The outout will generally be: image/jpeg or image/gif or image/png
But if it is: application/octet-stream, then the file is not an image.
Labels:

Comments

Post a Comment

Popular posts from this blog

php strip all tags

The below function can strip almost all tags from a string. function strip_all_tags($string) {     $string = preg_replace( '@<(script|style)[^>]*?>.*?@si', '', $string );     $string = strip_tags($string);     return trim($string); } $a = '<script type="text/javascript" src="jquery.js"></script> <div id="test" style="padding:5px; color:red;">Hello world</div>'; echo strip_all_tags($a); // outputs: Hello world
Post a Comment
Read more

joomla remove category name in url

-) If anyone is using the lyftenbloggie component, and want to remove the component name and category title from the sef url, follow this hack: (Note: You also need to install the lyftenbloggie extension for ARTIO SEF) Under components/com_sef/joomsef.php, After this code: $location = array();         foreach ($title as $titlePart) {             if (strlen($titlePart) == 0) continue;             $location[] = JoomSEF::_titleToLocation($titlePart);         } Just add this code: if($location[0] == 'lyftenbloggie')         {         $temp_sef = end($location);         $location = array();            $location[] = $temp_sef;         ...
Post a Comment
Read more

htaccess disable directory browsing, disable file listing, disable file access

There may be some personal or secure data in a file, that you want to hide from the end user, when it is viewed through a web browser. Ex: http://www.example.com/user_files/24/chat.txt In the above scenario, if the file "chat.txt" contains a secure data, and you dont want to allow end users to directly access the file, or to disable the file listing in the folder "user_files" or "24", use the below code in your .htaccess file inside "user_files" folder: Options -Indexes order allow,deny deny from all
Post a Comment
Read more