wordpress的格式清除函数wp_strip_all_tags

• 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

function wp_strip_all_tags( $text, $remove_breaks = false ) {
	if ( is_null( $text ) ) {
		return '';
	}

	if ( ! is_scalar( $text ) ) {
		/*
		 * To maintain consistency with pre-PHP 8 error levels,
		 * trigger_error() is used to trigger an E_USER_WARNING,
		 * rather than _doing_it_wrong(), which triggers an E_USER_NOTICE.
		 */
		trigger_error(
			sprintf(
				/* translators: 1: The function name, 2: The argument number, 3: The argument name, 4: The expected type, 5: The provided type. */
				__( 'Warning: %1$s expects parameter %2$s (%3$s) to be a %4$s, %5$s given.' ),
				__FUNCTION__,
				'#1',
				'$text',
				'string',
				gettype( $text )
			),
			E_USER_WARNING
		);

		return '';
	}

	$text = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $text );
	$text = strip_tags( $text );

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

	return trim( $text );
}