dongqindan4406 2010-02-24 00:13
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如果（0 =='％'）回应“WTF，Php，为什么你不能比较清楚地比较事情？”

I just reduced a crazy bug to what's in the title of this question. I'm sure there's a Perfectly Reasonable Explanation for why Php thinks that 0 == '%' (or any other special character, I think). I thought it would be good to get that explanation on StackOverflow!

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  • douyuai8994 2010-02-24 00:16
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    Using '===' (for exact, literal comparison -- the values must be the same type and also equal) instead of '==' solves this problem. With '==' it's trying to cast '%' to a number and 0 is the best it can do.

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