(PHP 5 >= 5.3.6, PHP 7)
SplObjectStorage::removeAllExcept — Removes all objects except for those contained in another storage from the current storage
Removes all objects except for those contained in another storage from the current storage.
storage
The storage containing the elements to retain in the current storage.
값을 반환하지 않습니다.
Example #1 SplObjectStorage::removeAllExcept() example
<?php
$a = (object) 'a';
$b = (object) 'b';
$c = (object) 'c';
$foo = new SplObjectStorage;
$foo->attach($a);
$foo->attach($b);
$bar = new SplObjectStorage;
$bar->attach($b);
$bar->attach($c);
$foo->removeAllExcept($bar);
var_dump($foo->contains($a));
var_dump($foo->contains($b));
?>
위 예제의 출력 예시:
bool(false) bool(true)