<?php
$alpha = 'aabbccddeeffgghhiijjkk';
$alphaArray = str_split($alpha);
$uniqArray = array_unique($alphaArray);
$diff = array_diff_assoc($alphaArray, $uniqArray);
var_dump($diff);
- Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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(11) {
[1]=>
string(1) "a"
[3]=>
string(1) "b"
[5]=>
string(1) "c"
[7]=>
string(1) "d"
[9]=>
string(1) "e"
[11]=>
string(1) "f"
[13]=>
string(1) "g"
[15]=>
string(1) "h"
[17]=>
string(1) "i"
[19]=>
string(1) "j"
[21]=>
string(1) "k"
}
- 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(11) {
[1]=>
string(1) "a"
[3]=>
string(1) "b"
[5]=>
string(1) "c"
[7]=>
string(1) "d"
[9]=>
string(1) "e"
[11]=>
string(1) "f"
[13]=>
string(1) "g"
[15]=>
string(1) "h"
[17]=>
string(1) "i"
[19]=>
string(1) "j"
[21]=>
string(1) "k"
}
preferences:
139.75 ms | 402 KiB | 173 Q