名称中带点的 PHP GET url 参数

Question

得到了一些似乎不起作用的东西。假设我有一个像

www.test1.php?WC.id=12345

然后下面什么都不返回

$_GET['WC.id'];

如果我卸下马桶。部分，然后它返回 12345。我的 url 参数名称中可以没有句点吗？

谢谢

Answer 1

来自documentation :

It is important to note that PHP will automatically replace any dots in incoming variable names with underscores. [...] PHP irreversibly modifies field names containing these characters in an attempt to maintain compatibility with the deprecated register_globals feature.

The full list of field-name characters that PHP converts to _ (underscore) is the following (not just dot):

chr(32) ( ) (space)
chr(46) (.) (dot)
chr(91) ([) (open square bracket)
chr(128) - chr(159) (various)

因此，您可以使用WC_id 名称访问WC.id。