如何检查 $_GET 是否为空?
如何检查$_GET
是否为空?
推荐答案
你自己说的,检查它是 empty
:
You said it yourself, check that it's empty
:
if (empty($_GET)) {
// no data passed by get
}
看,PHP 就是这么简单.你可以简单地写下你的想法;)
See, PHP is so straightforward. You may simply write, what you think ;)
这种方法非常安全.如果 $_GET
未设置(不太可能,但可能),!$_GET
可能会给你一个未定义的变量 E_NOTICE.
This method is quite secure. !$_GET
could give you an undefined variable E_NOTICE if $_GET
was unset (not probable, but possible).
相关文章