<?php
$x = array("a", "b", "c", "d", "e");
$x = array_reduce($x, function($arr, $val) {
array_push($arr, $val, $val);
return $arr;
}, []);
var_dump($x);
- Output for 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
- array(10) {
[0]=>
string(1) "a"
[1]=>
string(1) "a"
[2]=>
string(1) "b"
[3]=>
string(1) "b"
[4]=>
string(1) "c"
[5]=>
string(1) "c"
[6]=>
string(1) "d"
[7]=>
string(1) "d"
[8]=>
string(1) "e"
[9]=>
string(1) "e"
}
- Output for 8.3.5
- Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
array(10) {
[0]=>
string(1) "a"
[1]=>
string(1) "a"
[2]=>
string(1) "b"
[3]=>
string(1) "b"
[4]=>
string(1) "c"
[5]=>
string(1) "c"
[6]=>
string(1) "d"
[7]=>
string(1) "d"
[8]=>
string(1) "e"
[9]=>
string(1) "e"
}
preferences:
176.95 ms | 402 KiB | 212 Q