Make Rand Pass

randPass.php

function randPass($leng = 20, $uppercase = true, $number = true, $simbol = true)
	{
	    $lower   	= 'abcdefghijklmnopqrstuvwxyz';
	    $upper   	= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
	    $numbers    = '1234567890';
	    $simbols    = '?@[#_>(!&]{$*=<%}+)-^~';
	    $password   = '';
	    $characters = '';

	    $character .= $lower;

	    if ($uppercase) $characters .= $upper;
	    if ($number) $characters .= $numbers;
	    if ($simbol) $characters .= $simbols;

	    $len = strlen($characters);

	    for ($n = 1; $n <= $leng; $n++) {
	        $password .= $characters[random_int(0, $len)];
	    }

	    return $password;
	}