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<?php $x = false; var_dump($x !== "" && $x == null); $x = 0; var_dump($x !== "" && $x == null); $x = array(); var_dump($x !== "" && $x == null); $x = 0.0; var_dump($x !== "" && $x == null); $x = null; var_dump($x !== "" && $x == null); // undefined var var_dump($y !== "" && $y == null);
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(true) bool(true) bool(true) bool(true) Warning: Undefined variable $y in /in/532He on line 14 Warning: Undefined variable $y in /in/532He on line 14 bool(true)

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