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<?php $string = "C#maj7"; $qualityVal = ""; if (true) { $qualityVal .= substr($string, 2); } $num = 10; $num += 10; class Hello { public $world; public function __toString() { return "Hello!"; } } $hello = new Hello(); //$world = "world"; //echo $hello->$world; $arr1 = array("a"); $arr2 = array("b"); $arr2 = array("a"); print_r($arr1 + $arr2 + $arr3); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $arr3 in /in/1jh3N on line 21 Fatal error: Uncaught TypeError: Unsupported operand types: array + null in /in/1jh3N:21 Stack trace: #0 {main} thrown in /in/1jh3N on line 21
Process exited with code 255.

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