As part of my occasional series on PHP string manipulation here is a quick PHP function designed to retrieve the file extension from a file path.
function getExt($file){; $ext = substr(strrchr($file,"."), 1); return $ext; }
If you get mixed case file extensions ie ‘image1.jpg’ and ‘image2.JPEG’ then use this variant that will return the file extension in lowercase.
function getExt($file){; $ext = substr(strrchr($file,"."), 1); return strtolower($ext); }
For others in this series try:
here is an easy way
$extension = pathinfo($file_path, PATHINFO_EXTENSION);