Good alternative to eregi() in PHP

Question

I often find myself doing quick checks like this:

if (!eregi(\'.php\', $fileName)) {
    $filename .= \'.php\';
}

But as eregi() was deprec

Answer 1

Of course you are aware, that this doesn't do what you expect it do do? In regexp '.' means any character, so eregi('.php',$fileName) means filename with any character followed by 'php'. Thus for example "blabla2PHP.txt" will match your regexp.

Now what you want to do is this:

$file_ext = pathinfo($filename, PATHINFO_EXTENSION);
if(strtolower($file_ext) != 'php') 
   $filename .= '.php';