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run code in 150+ php & hhvm versions
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<?php $array = array('a', 'b', 'c'); $result = array(); for ($i = 0; $i < 5; $i++) { array_push($result, ...$array); } var_dump($result);
Output for 5.6.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(15) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" [3]=> string(1) "a" [4]=> string(1) "b" [5]=> string(1) "c" [6]=> string(1) "a" [7]=> string(1) "b" [8]=> string(1) "c" [9]=> string(1) "a" [10]=> string(1) "b" [11]=> string(1) "c" [12]=> string(1) "a" [13]=> string(1) "b" [14]=> string(1) "c" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.5.38
Parse error: syntax error, unexpected '.' in /in/0kQQO on line 6
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/0kQQO on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/0kQQO on line 6
Process exited with code 255.