php - 从foreach中删除索引数组？

Question

简单的问题；如何从我的 foreach() 中删除正确的数组？

foreach ( $items as $e):
    if ( $e['seat'] == $users[$clientID]['seat']):
        //It's done, delete it.
        unset ( $e );
    endif;
endforeach;

unset($e) 似乎无法正常工作。从正确的索引中删除正确的数组的正确解决方案是什么？

Answer 1

这是 xbonez 给出的 for 循环的替代方法，也可以传递key值：

foreach ( $items as $key => $e):
    if ( $e['seat'] == $users[$clientID]['seat']):
        //It's done, delete it.
        unset ( $items[$key] );
    endif;
endforeach;

我更喜欢这个版本，但这并不重要！

Answer 2

unset($e)在 a 中执行foreach取消设置 variable $e，而不是它所代表的数组中的项目。您需要为此使用常规的 for 循环

for($i = 0; $i < count($items); $i++) {
   if ($items[$i]['seat'] == $users[$clientID]['seat']) {
      unset($items[$i])
   }
}

Answer 3

尝试类似：

foreach ($items as &$e):
    if ($e['seat'] == $users[$clientID]['seat']):
        //It's done, delete it.
        unset ($e);
    endif;
endforeach;