Really :) returns file extension

By : greggory

<?php
// Function that get file extension

// Returns an empty string if file has no
// extension

// I try to use regular expression as much
// as possible when working with strings
// because this way you never have to deal
// with string indexes.

function ReallyGetFileExtension( &$filename )
{
return ereg( ".([^\.]+)$", $filename, $r ) ? $r[1] : "";
}

?>

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