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php empty问题

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Release： 2016-06-23 14:35:07
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昨天写PHP代码时为了方便写了一句if(empty(intval($type)))报错，提示“Can't use function return value in write context”，一时有点晕。就改成$type = intval($type) if(empty($type))最后查PHP手册说明empty()中的参数只能是变量。是否PHP可以改进下。上面这种写法也挺美的吧！

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