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php 正则中的 x2dx2ex5f 表示什么?
- WBOYOriginal
- 2016-06-06 20:34:411243browse
preg_match("/^[\x{4e00}-\x{9fa5}A-Za-z0-9\x2d\x2e\x5f]+$/u", $name)
正则中 \x2d\x2e\x5f 表示哪些字符? 有没有一个完整的表可以参考?
回复内容：
preg_match("/^[\x{4e00}-\x{9fa5}A-Za-z0-9\x2d\x2e\x5f]+$/u", $name)
正则中 \x2d\x2e\x5f 表示哪些字符? 有没有一个完整的表可以参考?
<code>echo utf8_decode("\x2d\x2e\x5f");
</code>
其實就是 "-._"
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_...
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