Random Team Matching with php

echo "start\n\n"; $a1 = Array('Chealsea', 'Arsenal', 'Manchester', 'Liverpool');$a2 = Array('Ato', 'Ozi', 'Mustafa', 'Emo');
$b = "0123";

$c = "0123";   for($i=0;$i<(sizeof($a1)-1);$i++) {

if($i!=0){

$b	= str_replace($s1,"",$b);

$c	= str_replace($s2,"",$c);

}

$s1	= substr(str_shuffle($b), 0, 1);

$s2	= substr(str_shuffle($c), 0, 1);

echo $a1[$s1] . ":" . $a2[$s2] . "\n";

}

echo "\n\nend";