WordPress at a glance

save_mod_rewrite_rules() WP 1.0

Updates the htaccess file with the current rules if it is writable.

Always writes to the file if it exists and is writable to ensure that we blank out old rules.

No Hooks.

Return

true/false/null. True on write success, false on failure. Null in multisite.

Usage

save_mod_rewrite_rules();

Notes

  • Global. WP_Rewrite. $wp_rewrite

Changelog

Since 1.5.0 Introduced.

Code of save mod rewrite rules: wp-admin/includes/misc.php WP 5.2.2

<?php
function save_mod_rewrite_rules() {
	if ( is_multisite() ) {
		return;
	}

	global $wp_rewrite;

	// Ensure get_home_path() is declared.
	require_once( ABSPATH . 'wp-admin/includes/file.php' );

	$home_path     = get_home_path();
	$htaccess_file = $home_path . '.htaccess';

	/*
	 * If the file doesn't already exist check for write access to the directory
	 * and whether we have some rules. Else check for write access to the file.
	 */
	if ( ( ! file_exists( $htaccess_file ) && is_writable( $home_path ) && $wp_rewrite->using_mod_rewrite_permalinks() ) || is_writable( $htaccess_file ) ) {
		if ( got_mod_rewrite() ) {
			$rules = explode( "\n", $wp_rewrite->mod_rewrite_rules() );
			return insert_with_markers( $htaccess_file, 'WordPress', $rules );
		}
	}

	return false;
}

Related Functions

From tag: Rewrite (clean friendly URL)

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