WP_Rewrite::using_index_permalinks()

Determines whether permalinks are being used and rewrite module is not enabled.

Description

Means that permalink links are enabled and index.php is in the URL.

Return

(bool) Whether permalink links are enabled and index.php is in the URL.

More Information

Returns true if your blog is using PATHINFO permalinks.

Source

File: wp-includes/class-wp-rewrite.php 

public function using_index_permalinks() {
		if ( empty( $this->permalink_structure ) ) {
			return false;
		}

		// If the index is not in the permalink, we're using mod_rewrite.
		return preg_match( '#^/*' . $this->index . '#', $this->permalink_structure );
	}

Used By

Used By Description
wp-includes/rest-api.php: get_rest_url()

Retrieves the URL to a REST endpoint on a site.
wp-includes/general-template.php: paginate_links()

Retrieves paginated links for archive post pages.
wp-includes/taxonomy.php: create_initial_taxonomies()

Creates the initial taxonomies.
wp-includes/link-template.php: get_pagenum_link()

Retrieves the link for a page number.
wp-includes/class-wp-rewrite.php: WP_Rewrite::init()

Sets up the object’s properties.
wp-includes/class-wp-rewrite.php: WP_Rewrite::using_mod_rewrite_permalinks()

Determines whether permalinks are being used and rewrite module is enabled.
wp-includes/rewrite.php: url_to_postid()

Examine a URL and try to determine the post ID it represents.
wp-includes/canonical.php: redirect_canonical()

Redirects incoming links to the proper URL based on the site url.

Changelog

Version Description
1.5.0 Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_rewrite/using_index_permalinks