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<?php $str = 'abc'; var_dump($str['1']); var_dump(isset($str['1'])); var_dump($str['1.0']); var_dump(isset($str['1.0'])); var_dump($str['x']); var_dump(isset($str['x'])); var_dump($str['1x']); var_dump(isset($str['1x']));
Output for git.master, git.master_jit, rfc.property-hooks
string(1) "b" bool(true) Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/Z2BK2:8 Stack trace: #0 {main} thrown in /in/Z2BK2 on line 8
Process exited with code 255.

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