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run code in 300+ PHP versions simultaneously
<?php $a = 4121.57;$b = 3998;$c = 123.57;$d = round( $a - $b - $c, 2);$e = round( $d, 2 ); echo "\n";echo str_pad(print_r($d,TRUE),4,' ')." // NEGATIVE ZERO?"."\n";echo str_pad(print_r($e,TRUE),4,' ')." // Don't worry, it rounds to zero! -_-"."\n";var_dump($e == 0, $e === 0, $e == -0, $e === -0);
Output for git.master, git.master_jit, rfc.property-hooks
-0 // NEGATIVE ZERO? -0 // Don't worry, it rounds to zero! -_- bool(true) bool(false) bool(true) bool(false)

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