3v4l.org

run code in 300+ PHP versions simultaneously
<?php $inputArray = ['foo', 'bar', 'foz', 'baz', 'foz', 'boo']; $endResult = []; foreach (array_chunk($inputArray, 2) as $pair) { $endResult[] = $pair[0] . $pair[1]; } var_dump($endResult);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(3) { [0]=> string(6) "foobar" [1]=> string(6) "fozbaz" [2]=> string(6) "fozboo" }

preferences:
181.72 ms | 403 KiB | 214 Q