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run code in 200+ php & hhvm versions
Bugs & Features
<?php $data = ['First', 'Second', 'Third', 'Fourth', 'Fifth', 'Sixth']; $temp = $data; $result = []; foreach($data as $i=>$item) { unset($temp[$i]); $result = [$item, $temp[array_rand($temp)]]; } var_dump($result);
Output for 7.1.0 - 7.2.0
Warning: array_rand(): Array is empty in /in/KfJjj on line 9 Notice: Undefined index: in /in/KfJjj on line 9 array(2) { [0]=> string(5) "Sixth" [1]=> NULL }
Output for 5.4.0 - 7.0.20
Notice: Undefined index: in /in/KfJjj on line 9 array(2) { [0]=> string(5) "Sixth" [1]=> NULL }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/KfJjj on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/KfJjj on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/KfJjj on line 3
Process exited with code 255.