Online PHP editor | output for MnWib

<?php $a = "0"; $b = "0.0"; $c = 0; $d = false; if($a == $b) { var_dump($a); echo " == "; var_dump($b); echo"\n";} if($a == $c) { var_dump($a); echo " == "; var_dump($c); echo"\n";} if($a == $d) { var_dump($a); echo " == "; var_dump($d); echo"\n";} if($b == $c) { var_dump($b); echo " == "; var_dump($c); echo"\n";} if($b == $d) { var_dump($b); echo " == "; var_dump($d); echo"\n";} if($c == $d) { var_dump($c); echo " == "; var_dump($d); echo"\n";} if($a == $b && $a == $d && $b != $d) echo "Fuck this\n";