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get_tag_regex( string $tag )

Return RegEx body to liberally match an opening HTML tag.

Description

Matches an opening HTML tag that:

  1. Is self-closing or
  2. Has no body but has a closing tag of the same name or
  3. Contains a body and a closing tag of the same name

Note: this RegEx does not balance inner tags and does not attempt to produce valid HTML

Parameters

$tag

(string) (Required) An HTML tag name. Example: 'video'.

Return

(string) Tag RegEx.

Source

File: wp-includes/functions.php 

function get_tag_regex( $tag ) {
	if ( empty( $tag ) ) {
		return '';
	}
	return sprintf( '<%1$s[^<]*(?:>[\s\S]*<\/%1$s>|\s*\/>)', tag_escape( $tag ) );
}

Uses

Uses Description
wp-includes/formatting.php: tag_escape()

Escape an HTML tag name.

Changelog

Version Description
3.6.0 Introduced.

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