Special multiplication

specialX.php

<?php
 /* Enter your code here. Read input from STDIN. Print output to STDOUT */
$handle = fopen ("php://stdin","r");
$t = fgets($handle);
$LIMIT=100000;
function specialX($number){
	global $LIMIT;
	for($i=$number;$i<$LIMIT;$i++){
		if(($fours=strpos($i,'0'))===false){
			$forfours=$i;
		}else{
			$forfours=substr($i, 0, $fours);
		}
		$fours=strlen($forfours);
		if(count(array_diff(str_split($forfours), array_fill(0, $fours,'4')))==0){
			$zeros=strlen($i)-$fours;
			return  2*$fours+$zeros;
		}
	}
}
for($i=0; $i<$t; $i++)
{
    $number = trim(fgets($handle));
    print(specialX($number)."\n");
}