How to remove html tags in php

In php, you can use the strip_tags() function to remove html tags, the syntax is "strip_tags(string,allow)"; this function is used to strip HTM, PHP and other tags in the string, the parameter " allow" is used to specify the tags that need to be retained. If omitted, all tags will be deleted.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In php, you can use strip_tags () function to remove html tags.

strip_tags() function strips HTML, XML and PHP tags from a string.

strip_tags() function accepts two parameters:

strip_tags(string,allow)

Parameters	Description
string	Required. Specifies the string to check.
allow	Optional. Specifies allowed tags. These tags will not be deleted.

If the "allow" parameter is omitted, all tags in the string will be deleted.

Example:

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$str = "Hello <b><i>world!</i></b>";
echo $str;
echo "<br>删除全部标签后： ".strip_tags($str);
echo "<br>保留b标签： ".strip_tags($str,"<b>");
?>

It can be seen that if the strip_tags() function omits the "allow" parameter, all tags will be deleted; if this parameter is set , you can retain specified tags, such as the tag in the above example, to achieve a bold effect.

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