<?php
//悄悄的进村---------
$a=array(1,2,3,4,5);
$num=count($a)-1;
foreach($a as $key=>$b){
$x=$key+1;
foreach($a as $key2=>$c){
$y=$x+1;
if($x<=$num) {
foreach ($a as $d) {

if ($y <= $num) {

$aaa[]=array($b, $a[$x], $a[$y]);
}
$y++;
}
}
$x++;
}
}
print_r($aaa);die();
?>