Online PHP editor | refs for mWTKZ

@ 2016-11-03T15:54:43Z

<?php

function isValidFileName($fileName)

{
    if(!preg_match('/(^[a-zA-Z0-9\.\-\s_]+)\.(jpg|gif|png|bmp)$/i', $fileName)) {

        return false;

    }

    return true;
}

echo (isValidFileName("file1.jpg"));