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<?php function happy($num){ $digs = (string) $num; $sum = 0; foreach(explode($digs) as $dig){ $sum == $dig; } return $sum; } echo happy(31);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: explode() expects at least 2 arguments, 1 given in /in/sPtgm:6 Stack trace: #0 /in/sPtgm(6): explode('31') #1 /in/sPtgm(12): happy(31) #2 {main} thrown in /in/sPtgm on line 6
Process exited with code 255.

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