php利用正则过滤链接、标签,空格,换行符程序
本文章详细的总结了php利用正则过滤链接、标签,空格,换行符程序,有需要学习的朋友可参考一下。
strip_tags函数
strip_tags --- 去除字串中的HTML和PHP标签
语法 : string strip_tags (string str [, string allowable_tags])
例
代码如下 | 复制代码 |
$text = ' Test paragraph. Other text';echo strip_tags($text); echo "n"; // Allow |
正则过滤各种标签,空格,换行符
代码如下 | 复制代码 |
$str=preg_replace("/s+/", " ", $str); //过滤多余回车 |
php 正则过滤html 的超链接
代码如下 | 复制代码 |
echo preg_replace("/(?]*)(?=>)/i","#", "你好,点这里看看你好,点这里看看"); ?> |
正则:/(?]*)(?=>)/
(?
(?=exp) 匹配exp前面的位置
此正则 匹配 在 href= 之后 “>” 之前 的 非 “>” 的所有字符
例子:
找到这些字符(url)用 # 替换,就可以去掉html里的所有链接。

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