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

Good alternative for eregi() is preg_match() with i modifier:

if (! preg_match('/.php/i',$fileName))
      $filename.='.php';