How to delete specified tags in php

In PHP, you can use the strip_tags() function to delete specified tags. This function can strip HTML, XML and PHP tags in a string. The syntax format is "strip_tags(string,allow)"; parameter allow Specifies tags that can exist and will not be deleted.

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

php delete specified tag

Example: Strip HTML tags from string:

<?php
echo strip_tags("Hello <b>world!</b>");
?>

Output:

# The ##strip_tags() function strips HTML, XML and PHP tags from strings. The syntax is as follows:

strip_tags(string,allow)

<?php
echo strip_tags("Hello <b><i>world!</i></b>","<b>");
?>

Comment: This function always strips HTML comments. This cannot be changed via the allow parameter.

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