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run code in 150+ php & hhvm versions
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<?php foreach(get_defined_vars()as $key => $v) { unset($GLOBALS[$key]); } unset($key, $v); $a=5; $b = 6; var_dump(get_defined_vars()); $b=['1','2',3,4,5,6,7,8]; $vars=array_slice($b, 1); var_dump($vars);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { ["a"]=> int(5) ["b"]=> int(6) } array(7) { [0]=> string(1) "2" [1]=> int(3) [2]=> int(4) [3]=> int(5) [4]=> int(6) [5]=> int(7) [6]=> int(8) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/lG7T6 on line 16
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/lG7T6 on line 16
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/lG7T6 on line 16
Process exited with code 255.