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wp_strip_all_tags( string $string, bool $remove_breaks = false )

Properly strip all HTML tags including script and style

Description

This differs from strip_tags() because it removes the contents of the <script> and <style> tags. E.g. strip_tags( '<script>something</script>' ) will return ‘something’. wp_strip_all_tags will return ”

Parameters

$string

(string) (Required) String containing HTML tags

$remove_breaks

(bool) (Optional) Whether to remove left over line breaks and white space chars

Default value: false

Return

(string) The processed string.

More Information

wp_strip_all_tags() is added to the following filters by default (see wp-includes/default-filters.php):

  • pre_comment_author_url
  • pre_user_url
  • pre_link_url
  • pre_link_image
  • pre_link_rss
  • pre_post_guid

It is also applied to these filters by default when on the administration side of the site:

  • user_url
  • link_url
  • link_image
  • link_rss
  • comment_url
  • post_guid

Source

File: wp-includes/formatting.php 

function wp_strip_all_tags( $string, $remove_breaks = false ) {
	$string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string );
	$string = strip_tags( $string );

	if ( $remove_breaks ) {
		$string = preg_replace( '/[\r\n\t ]+/', ' ', $string );
	}

	return trim( $string );
}

Used By

Used By Description
wp-includes/rest-api/endpoints/class-wp-rest-block-directory-controller.php: WP_REST_Block_Directory_Controller::prepare_item_for_response()

Parse block metadata for a block, and prepare it for an API repsonse.
wp-includes/comment.php: wp_check_comment_disallowed_list()

Checks if a comment contains disallowed characters or words.
wp-admin/includes/class-plugin-installer-skin.php: Plugin_Installer_Skin::do_overwrite()

Check if the plugin can be overwritten and output the HTML for overwriting a plugin on upload.
wp-admin/includes/class-theme-installer-skin.php: Theme_Installer_Skin::do_overwrite()

Check if the theme can be overwritten and output the HTML for overwriting a theme on upload.
wp-includes/class-wp-recovery-mode-email-service.php: WP_Recovery_Mode_Email_Service::send_recovery_mode_email()

Sends the Recovery Mode email to the site admin email address.
wp-includes/formatting.php: _sanitize_text_fields()

Internal helper function to sanitize a string from user input or from the db
wp-admin/includes/class-wp-screen.php: WP_Screen::render_list_table_columns_preferences()

Render the list table columns preferences.
wp-admin/includes/class-wp-list-table.php: WP_List_Table::single_row_columns()

Generates the columns for a single row of the table.
wp-admin/includes/class-wp-users-list-table.php: WP_Users_List_Table::single_row()

Generate HTML for a single row on the users.php admin panel.
wp-admin/includes/media.php: media_upload_form_handler()

Handles form submissions for the legacy media uploader.
wp-admin/includes/post.php: edit_post()

Update an existing post with values provided in $_POST.
wp-admin/includes/ajax-actions.php: wp_ajax_save_attachment()

Ajax handler for updating attachment attributes.
wp-includes/formatting.php: wp_html_excerpt()

Safely extracts not more than the first $count characters from HTML string.
wp-includes/formatting.php: wp_trim_words()

Trims text to a certain number of words.
wp-includes/formatting.php: sanitize_user()

Sanitizes a username, stripping out unsafe characters.
wp-includes/nav-menu.php: wp_setup_nav_menu_item()

Decorates a menu item object with the shared navigation menu item properties.

Changelog

Version Description
2.9.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_strip_all_tags