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<?php /* Function to reverse $arr from start to end*/ function reverseArray(&$arr, $start, $end) { while ($start < $end) { [$arr[$start],$arr[$end]] = [$arr[$end],$arr[$start]]; $start++; $end--; } } $a = [1,2,3,4]; reverseArray($a,0,count($a)-1); print_r($a);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.13
Array ( [0] => 4 [1] => 3 [2] => 2 [3] => 1 )
preferences:
111.32 ms | 407 KiB | 5 Q