<?php
	$arr = [0,2,3,4,5];
	$num = Getenum($arr,5);
	echo "\n",$num,"\n";
	function Getenum($arr=[],$len=0){
		if($len == 0 || !$arr){
			return false;
		}
	$num = 0;
		for($i=0;$i<$len;$i++){
		for($j=0;$j<$len;$j++){
		for($k=0;$k<$len;$k++){
			if($arr[$i]!=$arr[$j] && $arr[$i]!=$arr[$k] && $arr[$j]!=$arr[$k]&&$arr[$i]!=0){
				$num++; 
			//if($num%13==0)echo "
"; 
		echo $arr[$i],$arr[$j],$arr[$k],"\n";
			}
		}
		}
		}
	}  
?>