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<?php $foo = 'pouet'; echo 'YO!'; var_dump( isset($foo['coin']), $foo['coin'] );
Output for git.master, git.master_jit, rfc.property-hooks
YO! Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/7hpnW:8 Stack trace: #0 {main} thrown in /in/7hpnW on line 8
Process exited with code 255.

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