php_lang_ref：Language Reference >> References Explained >> Unsetting References

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<?php// +----------------------------------------------------------------------// | Created by im-server.// +----------------------------------------------------------------------// | Language Reference >> References Explained >> Unsetting References// +----------------------------------------------------------------------// | Author: alexander <gt199899@gmail.com>// +----------------------------------------------------------------------// | Datetime: 2017-07-16 18:42// +----------------------------------------------------------------------// | Perfect Is Shit// +----------------------------------------------------------------------/** * 当 unset 一个引用，只是断开了变量名和变量内容之间的绑定。这并不意味着变量内容被销毁了。 * case1 */namespace case1;$a = 1;$b =& $a;unset($a);var_dump($b);/** * 输出： * int(1) */

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