Php тег удаляющий html

Возвращаемые значения

Возвращает строку без тегов.

Список изменений

Примеры

Пример #1 Пример использования strip_tags()

Результат выполнения данного примера:

Примечания

Из-за того, что strip_tags() не проверяет валидность HTML, то частичные или сломанные теги могут послужить удалением большего количества текста или данных, чем ожидалось.

Эта функция не изменяет атрибуты тегов, разрешенных с помощью allowable_tags , включая такие атрибуты как style и onmouseover, которые могут быть использованы озорными пользователями при посылке текста, отображаемого также и другим пользователям.

Замечание:

Имена тегов в HTML превышающие 1023 байта будут рассматриваться как невалидные независимо от параметра allowable_tags .

Смотрите также

Источник

Strip all HTML tags, except allowed

I’ve seen a lot of expressions to remove a specific tag (or many specified tags), and one to remove all but one specific tag, but I haven’t found a way to remove all except many excluded (i.e. all except p, b, i, u, a, ul, ol, li ) in PHP. I’m far from good with regex, so I’d need a hand. 🙂 Thanks!

3 Answers 3

you can do this by using strip_tags function

¶ strip_tags — Strip HTML and PHP tags from a string

 strip_tags($contant,'tag you want to allow'); 

Thanks for explaining how to exclude multiple tags. The original ducumentation isn’t that clear about this point.

You can use array instead of string starting from php 7.4 $html_value = strip_tags($contente, [‘code’, ‘p’]);

It’s interesting that strip_tags doesn’t have an option to strip the content within non-allowed tags. Would have made the function more versatile.

The php.net/strip_tags page does have a function that does just this. strip_tags_content by mariusz.tarnaski

Why is this the accepted answer. strip_tags() does NOT exactly this! The title says: Strip all HTML tags, »»»»»»except«««««« allowed For strip_tags() it can be specified what to include, NOT what to exclude.

@icefront — you need to learn to read. Quote from the Doc: You can use the optional second parameter to specify tags which should not be stripped. These are either given as string, or as of PHP 7.4.0, as array

@icefront Because it is the answer. Strig_tags accepts second parameter where we can describe tags that should be allowed.

If you need some flexibility, you can use a regex-based solution and build upon it. strip_tags as outlined above should still be the preferred approach.

The following will strips only tags you specify (blacklist):

// tags separated by vertical bar $strip_tags = "a|strong|em"; // target html $html = 'hadf'; // Regex is loose and works for closing/opening tags across multiple lines and // is case-insensitive $clean_html = preg_replace("#]*?>#im", '', $html); // prints "hadf"; echo $clean_html; 

Источник

PHP strip_tags

Summary: in this tutorial, you’ll learn how to use the PHP strip_tags() function to strip HTML and PHP tags from a string.

Introduction to the PHP strip_tags() function

The strip_tags() function returns a new string with all HTML and PHP tags removed from the input string.

Here’s the syntax of the strip_tags() function:

strip_tags ( string $string , array|string|null $allowed_tags = null ) : stringCode language: PHP (php)

The strip_tags() function has the following parameters:

• $string is the input string.
• $allowed_tags is one or more tags that you want to retain in the result string. The $allowed_tags can be a string that contains the list of tags to retain e.g.,’p>’. If you use PHP 7.4.0 or later, you can pass an array of tags instead of a string, e.g., [‘div’,’p’] .

PHP strip_tags() function examples

Let’s take some examples of using the strip_tags() function.

1) Using PHP strip_tags() function to remove all HTML tags

The following example shows how to use the strip_tags() function to strip all HTML tags from the contents of the page https://www.php.net:

 $html = file_get_contents('https://www.php.net/'); $plain_text = strip_tags($html); echo $plain_text;Code language: PHP (php)

• First, use the file_get_contents() function to download the HTML contents from the php.net.
• Second, strip all the HTML tags from the HTML contents using the strip_tags() function.

2) Using PHP strip_tags() function with some allowed tags

The following example uses the strip_tags() function to strip all HTML tags from the contents of the page https://www.php.net but keeps the following tags: [‘h1’, ‘h2’, ‘h3’, ‘p’, ‘ul’, ‘li’, ‘a’] :

 $html = file_get_contents('https://www.php.net/'); $simple_html = strip_tags($html, ['h1', 'h2', 'h3', 'p', 'ul', 'li', 'a']); echo $simple_html;Code language: PHP (php)

Summary

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