- print_r: documentation ( source)
- array_diff: documentation ( source)
<?php
$_POST = array(
'a' => '11',
'b' => 11,
'c' => 11,
'd' => null,
'e' => null,
);
$to_delete = array(0 => false);
print_r(array_diff($_POST, $to_delete));
?>