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求正则表达式:只保留字符串中的汉字跟字母

WBOY
Release： 2016-06-13 12:53:53
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求正则表达式:只保留字符串中的汉字和字母
求正则表达式:只保留字符串中的汉字和字母


------解决方案--------------------
需要unicode
preg_replace('#[^a-z\u4e00-\u9fbb]#i', '', $string)

GBK下分开全角符号和汉字要复杂些
------解决方案--------------------
不是 utf-8 编码时，需转码
$s = '#$%^4sdfg3哈哈sdfgfdg$@#%@#$%AS<h>?><,.~!tt方法';<br />
echo preg_replace('/[\d\W_]/u', '', $s);
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sdfg哈哈sdfgfdgAShtt方法

你#1的补充与原帖的需求不符
echo preg_replace('/[\d\W_a-z]/iu', '', $s);
Copy after login
哈哈方法
Related labels：
echo nbsp replace
source：php.cn
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