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<?php $a = '';//array(); $b = array(1 => 'g', 'h'); $b += $a; print_r($a);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: Unsupported operand types: array + string in /in/s8hKV:5 Stack trace: #0 {main} thrown in /in/s8hKV on line 5
Process exited with code 255.

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