19 lines
613 B
PHP
19 lines
613 B
PHP
<?php
|
|
|
|
function explode_list(string $str) : array {
|
|
if (($str = trim($str, " \n\r\t\v\0,")) !== "") {
|
|
return array_map(fn($a) => trim($a), explode(",", str_replace(" ", "", $str)));
|
|
} else {
|
|
return [];
|
|
}
|
|
}
|
|
|
|
function alter_array_contents(array &$a, $add, $remove) {
|
|
if (($add !== null) && !array_search($add, $a)) { // if user was not assigned to the corresponding group
|
|
$a[] = $add;
|
|
}
|
|
if (($remove !== null) && (($i = array_search($remove, $a)) !== false)) { // only perform deleting if user is assigned to the passed group
|
|
array_splice($a, $i, 1);
|
|
}
|
|
}
|