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<?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)); ?>
Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.26, 8.0.0 - 8.0.13, 8.1rc1 - rc3
Array ( [a] => 11 [b] => 11 [c] => 11 )

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