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<?php $b = null; var_dump($a); var_dump($b); var_dump($a==null); var_dump($b==null); var_dump($a===null); var_dump($b===null);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $a in /in/q0tPV on line 5 NULL NULL Warning: Undefined variable $a in /in/q0tPV on line 8 bool(true) bool(true) Warning: Undefined variable $a in /in/q0tPV on line 11 bool(true) bool(true)

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