<?php
$a = array('1'=>'a1','2'=>'a2');
$b = array('2'=>'b2');
var_dump($a+$b);
var_dump($b+$a);
var_dump(array_merge($a,$b));
var_dump(array_merge($b,$a));
- 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(2) {
[1]=>
string(2) "a1"
[2]=>
string(2) "a2"
}
array(2) {
[2]=>
string(2) "b2"
[1]=>
string(2) "a1"
}
array(3) {
[0]=>
string(2) "a1"
[1]=>
string(2) "a2"
[2]=>
string(2) "b2"
}
array(3) {
[0]=>
string(2) "b2"
[1]=>
string(2) "a1"
[2]=>
string(2) "a2"
}
- 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(2) {
[1]=>
string(2) "a1"
[2]=>
string(2) "a2"
}
array(2) {
[2]=>
string(2) "b2"
[1]=>
string(2) "a1"
}
array(3) {
[0]=>
string(2) "a1"
[1]=>
string(2) "a2"
[2]=>
string(2) "b2"
}
array(3) {
[0]=>
string(2) "b2"
[1]=>
string(2) "a1"
[2]=>
string(2) "a2"
}
preferences:
174.46 ms | 402 KiB | 186 Q