Question

php> $a = array("a"=>1,"b"=>0,"c"=>1,"d"=>1,"e"=>0);

php> $b = array();

php> foreach ($a as $k =>$v){
 ...   if($v != 0){
 ...     $b["$k"] = $v;
 ...   }
 ... }

php> print_r($b);
Array
(
    [a] => 1
    [c] => 1
    [d] => 1
)

php> 

Anyways to do it not using loop?

Answer 1

I think that array_filter is what you need.

function notZero($var)
{
    // returns whether the input integer is not zero
    return $var != 0;
}

$a = array("a"=>1,"b"=>0,"c"=>1,"d"=>1,"e"=>0);

print_r(array_filter($a, "notZero"));

//Prints what you need
Array
(
    [a] => 1
    [c] => 1
    [d] => 1
)