PHP removes string tags strip_tags() function example detailed explanation

php strip_tags() function definition and usage?

When many novice friends learn PHP, they sometimes encounter some small problems, such as how to remove tags in strings; the problem of garbled strings. In fact, these problems are very simple and generally The problem of garbled characters is that the character encoding is not set properly. As long as the character encoding is set properly, basically there will be no garbled code problem. For specific articles, please refer to this article php Chinese garbled code problem summary, So how to remove the tags of the string? In fact, it is very simple to remove the tags of a string. You only need to use the string function strip_tags() to solve the problem. So how to use this function, this article will show you howphp strip_tags() function.

php strip_tags() function definition and usage

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

Grammar

strip_tags(string,allow)

Parameter details:

The string parameter specifies the string to be checked. It must have

allow. It is not a required parameter. It specifies which tags are allowed to exist in the string. These tags will not be deleted. If not filled in, all tags will be removed by default

PS: Note: This function will always strip HTML comments. This cannot be changed via the allow parameter.

Return value

strip_tags() function returns the stripped string.

Example 1

Use the strip_tags() function to remove HTML tags from a string. The code is as follows:

<?php
$name="Hello <b>world!</b>";

$tags=strip_tags($name);
echo $name."<br/>";                  //去除Html标签之前
echo $tags;                         //去除Html标签之后

?>

The output result of code running:

Example 2

Use the strip_tags() function to remove HTML tags from the string, but allow the use of tags, code The output result of running the code is as follows

<?php
$name="Hello <b><i>world!</i></b>";

$tags=strip_tags($name,"<b>");
echo $name."<br/>";                  //去除Html标签之前
echo $tags;                         //去除Html标签之后
?>

:

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