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<?php $a = array(); var_dump(isset($a['foo']['bar']['baz'])); var_dump(array_key_exists('baz', $a['foo']['bar']));
Output for git.master, git.master_jit
bool(false) Warning: Undefined array key "foo" in /in/AqeMh on line 6 Warning: Trying to access array offset on value of type null in /in/AqeMh on line 6 Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in /in/AqeMh:6 Stack trace: #0 {main} thrown in /in/AqeMh on line 6
Process exited with code 255.
Output for rfc.property-hooks
bool(false) Warning: Undefined array key "foo" in /in/AqeMh on line 6 Warning: Trying to access array offset on null in /in/AqeMh on line 6 Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in /in/AqeMh:6 Stack trace: #0 {main} thrown in /in/AqeMh on line 6
Process exited with code 255.

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