ArrayIterator::uasort
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
ArrayIterator::uasort — Sort with a user-defined comparison function and maintain index association
說明
This method sorts the elements such that indices maintain their correlation with the values they are associated with, using a user-defined comparison function.
注意:
如果兩個成員完全相同,那麼它們將保持原來的順序。 在 PHP 8.0.0 之前,它們在排序陣列中的相對順序是未定義的。
返回值
總是返回 true
。
參見
- ArrayIterator::asort() - Sort entries by values
- ArrayIterator::ksort() - Sort entries by keys
- ArrayIterator::natcasesort() - Sort entries naturally, case insensitive
- ArrayIterator::natsort() - Sort entries naturally
- ArrayIterator::uksort() - Sort by keys using a user-defined comparison function
- uasort() - 使用使用者自定義的比較函式,保持索引和值的對應關係,原地排序 array。