问题描述
我似乎无法能够使用mod_rewrite时以任何方式传递一个+
手动添加这到查询字符串 _tags = C％2B％2B +堆栈+溢，被正确地转换为 C ++堆栈溢出。
但使用mod_rewrite时（使用或不使用[NE]标志）
重写规则^标签/（[\\ w _ \\ - \\ + \\％] +）？$ tags.php _tags = $ 1 [QSA，L]
然后，它会转换为 C堆栈溢出（注意3个空格）。使用[B]国旗让我ç+++堆栈溢出+ 代替。
目标是，无论？_标记= C％2B％2B +堆栈+溢和 /标签/ C％2B％2B +堆栈+溢。
应该导致 C ++堆栈溢出。
我使用的空间作为分隔符分裂的标记。
$标签= array_unique（爆炸（，$ _REQUEST [_标签]））
The URL standard says that /tags/C%2B%2B+Stack+Overflow is semantically equivalent to C+++Stack+Overflow. Pluses are not specified to represent spaces in path components; the [B] behaviour is correct.
Path and query components are deliberately different. If you want to include the same escaped content in both you should avoid the difference by using the unambiguous %20 in preference to +.
You could try to pick up the difference between + and %2B by looking at the raw $_SERVER[REQUEST_URI] and picking it apart manually instead of using the standards-compliant parsers PHP gives you. But it's not likely a good idea.
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