Question

I have tried both these methods to remove the 0 values from this array but to no avail

foreach ($matches as $array_key=>$array_item)
{
  if($matches[$array_key] == 0)
  {
    unset($matches[$array_key]);
  }
}

var_dump ($matches[$array_key]);

and this

$matches_without_nulls = array_filter($matches);
print_r($matches_without_nulls[1]);

However, the string I keep getting is this

{ [0] => string(7) "2337667" [1] => string(7) "2335765" [2] => string(7) "2332651" [3] => string(7) "2328582" [4] => string(1) "0" [5] => string(1) "0" [6] => string(1) "0" [7] => string(1) "0" }

Any idea on what is happening?

Answer 1

Your array does not contains 0 (integer), it contains "0" (string):

if($matches[$array_key] == "0")

That will do the trick.

PS: Why are you printing out a none-existing value $matches[$array_key]? It has been unset, so NULL is provided. Test your code with var_dump ($matches);.

---

I just tried this and it works just fine:

$matches = array (
        "2337667",
        "2335765",
        "2332651",
        "2328582",
        "0",
        "0",
        "0",
        "0"
    );

foreach ( $matches as $array_key => $array_item ) {
    if( $matches[$array_key] == "0") {
        unset($matches[$array_key]);
    }
}

var_dump ($matches);

//output

array(4) {
    [0]=> string(7) "2337667"
    [1]=> string(7) "2335765"
    [2]=> string(7) "2332651"
    [3]=> string(7) "2328582"
}