Question

I have an array from which I need to remove null values:

 [227] => Array
    (
        [0] => 3
        [1] => 8
        [2] => 
        [3] => 
        [4] => 1
    )

)

I tried array_filter($quantity);

and also

foreach ($quantity as $key => $value) {
    if (is_null($value) || $value=="") {
        unset($quantity);
    }
}

and even tried the foreach with $quantity[0] and got Undefined offset 0. Any ideas?

UPDATE

This works but what if i dont have the 227

foreach ($quantityval[227] as $key => $value) {
   if (is_null($value) || trim($value)=="") {  
      unset($quantityval[227][$key]);
  }
 }

Answer 1

This looks like a nested array — your foreach statement looks correct, but needs to check the inner arrays:

foreach ($quantity as $key => $item)
    foreach ($item as $key2 => $item2) {
        if (is_null($item2) || $item2=="") {
            unset($quantity[$key][$key2]);
        }
    }
}