PHP判断是否为空的几个函数对比
- WBOYOriginal
- 2016-06-06 20:05:071188browse
这篇文章主要介绍了PHP判断是否为空的几个函数对比,本文讲解了gettype()、empty()、is_null()、isset()等几个函数在不同变量下的返回值情况,需要的朋友可以参考
直接上图表~~：
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