I have an array that could contain zero values.
$array = array(3=> 1000, 5=> 0, 6=> 5000, 7 => 0);
Since the code that uses that array can't manage fields set as 0, I need to remove them. (I thought to store the field with 0 as value in a temp array):
$zero_array = array();
foreach ($array as $k => $s) {
$zero_array[$k] = $k;
unset($stack[$k]);
}
After the core code has runned I want to put back the filed that had 0 as value in the same position as they were.
The core code returns an array like this:
$output = array(3 => 10, 6 => 50);
I'd like to add the old keys and get this:
$output = array(3 => 10, 5 => 0, 6 => 50, 7 => 0);
Just use array_filter in this situation to remove the 0 values:
$old_array = array(3 => 1000, 5=> 0, 6=> 5000, 7 => 0);
$new_array = array_filter($old_array);
// Now: $new_array = Array ( [3] => 1000 [6] => 5000 )
Then, do the stuff you want to $new_array
// Core code: Divide each element by 100:
$new_array = array(3 => 10, 6 => 50);
Then use the array union operator followed by ksort to get your desired array:
$array = $new_array + $old_array;
ksort($array);
// Now: Array ( [3] => 10 [5] => 0 [6] => 50 [7] => 0 )
Note: If Array ( [3] => 10 [6] => 50 [5] => 0 [7] => 0 ) is acceptable (IE. all the same key value pairs as your desired array, just in a different order), then you can skip the call to ksort.