php去除html标记的原生函数详解,php标记函数详解
php去除html标记的原生函数详解,php标记函数详解
strip_tags 去掉 HTML 及 PHP 的标记。 语法: string strip_tags(string str); 传回值: 字串 函式种类: 资料处理 内容说明 本函式可去掉字串中包含的任何 HTML 及 PHP 的标记字串。若是字串的 HTML 及 PHP 标签原来就有错,例如少了大于的符号,则也会传回错
strip_tags
去掉 HTML 及 PHP 的标记。
语法: string strip_tags(string str);
传回值: 字串
函式种类: 资料处理
内容说明
本函式可去掉字串中包含的任何 HTML 及 PHP 的标记字串。若是字串的 HTML 及 PHP 标签原来就有错,例如少了大于的符号,则也会传回错误。而本函式和 fgetss() 有着相同的功能。
htmlspecialchars
将特殊字元转成 HTML 格式。
语法: string htmlspecialchars(string string);
传回值: 字串
函式种类: 资料处理
本函式将特殊字元转成 HTML 的字串格式 ( &....; )。最常用到的场合可能就是处理客户留言的留言版了。
& (和) 转成 &
" (双引号) 转成 "
> (大于) 转成 >
此函式只转换上面的特殊字元,并不会全部转换成 HTML 所定的 ASCII 转换。
使用范例
复制代码 代码如下:
$new = htmlspecialchars("Test", ENT_QUOTES);
echo $new;
?>
附上一个本人项目中的应用实例吧:
在存入数据库的时候mysql数据库会将特殊符号进行转义,那么我们读取的时候会转义回来,而本人项目需要将n_info字段里的内容先去除HTML标签,然后再截取60字符的内容显示出来
本以为直接使用strip_tags()就可以实现,实际使用的时候才发现由于数据库里的内容是转义过的,strip_tags并不能识别,所以就需要先将特殊字符转义回来,
具体代码: _substr(strip_tags(htmlspecialchars_decode($value['n_info'])), 0, 60)

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