PHP intval跟(int)強制轉型差別

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For years I've been using intval($var) for being sure something is an integer, and sometimes using (int)$var to cast it into an integer, which essentially does the same thing — learn what casting is.

I'm here to tell you that unless you require the second parameter of intval(), which changes the base, then you should be casting instead.

In the case of casting int, it's about 300% or 3 times as fast as using intval(), and if you use it a lot like I do, for example in setting the correct type/checking for SQL queries, then it's time to switch. I know I am.