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<?php /*function add($a, $b){ return $a + $b; } echo add(2,3); function subtract ($a, $b){ return $a - $b; } echo subtract(5,4); function concatenate($a, $b){ return $a . $b; } echo concatenate('Hello', 'Wie');*/ //$arr = ['test', 'test2']; //print_r($arr[0]); function addToArray(){ $arr = ['']; $arr[] = 'test'; } echo addToArray($arr);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $arr in /in/P3qFN on line 30

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