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safeVar() 是什么意思啊该如何解决

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Release： 2016-06-13 13:20:03
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safeVar() 是什么意思啊？

PHP code
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safeVar($_GET);
    safeVar($_POST);
    safeVar($_REQUEST);
    safeVar($_COOKIE);
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------解决方案--------------------
自定义的一个function .我猜是过滤参数用的.
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