php删除html的方法：1、通过自定义的“strip”方法取出html标记；2、使用“strip_tags”函数去除HTML等标签；3、利用“strtr”函数转换字符串中特定的字符，用以删除html相关标签。
php删除html标签
方法1：
直接取出想要取出的标记
代码如下:
<?php
//取出br标记
function strip($str)
{
$str=str_replace("<br>","",$str);
//$str=htmlspecialchars($str);
return strip_tags($str);
}
?>方法2：
PHP 中有个 strip_tags 函数可以方便地去除 HTML 标签。
echo strip_tags(“Hello <b>World</b>”); // 去除 HTML、XML 以及 PHP 的标签。
对于非标准的 HTML 代码也能正确的去除：
echo strip_tags(“<a href=\”>\”>cftea</a>”); //输出 cftea
在PHP中可以使用strip_tags函数去除HTML标签，看下面示例：
代码如下:
<?php $str = ‘www<p>dreamdu</p>.com'; echo(htmlspecialchars($str).”<br>”); echo(strip_tags($str)); ?>
方法3：
strtr() 函数转换字符串中特定的字符。
语法
strtr(string,from,to)
或者
strtr(string,array)
参数
string1 必需。规定要转换的字符串。
from 必需（除非使用数组）。规定要改变的字符。
to 必需（除非使用数组）。规定要改变为的字符。
array 必需（除非使用 from 和 to）。一个数组，其中的键是原始字符，值是目标字符。
例子1：
代码如下:
<?php
echo strtr("Hilla Warld","ia","eo");
?>例子2：
代码如下:
<?php
$arr = array("Hello" => "Hi", "world" => "earth");
echo strtr("Hello world",$arr);
?>很多相关知识，请访问PHP中文网！
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