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<?php $a = 'Hello world!'; echo implode('', array_reverse(explode('', $a)));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ValueError: explode(): Argument #1 ($separator) cannot be empty in /in/t0CRM:3 Stack trace: #0 /in/t0CRM(3): explode('', 'Hello world!') #1 {main} thrown in /in/t0CRM on line 3
Process exited with code 255.

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