php-fpm and got_url_rewrite thinks I have no mod_rewrite and adds index.php

Hello,

Apache & mod_rewrite is configured as it should be and mod_rewrite is working without problems on this vhost.

The issue is WordPress is thinking, there’s no mod_rewrite available.

WordPress is thinking this way, because it’s running under php-fpm and is using got_url_rewrite() to check, if rewrite is available.

If you check  got_url_rewrite() you’ll see:

function got_url_rewrite() {
	$got_url_rewrite = ( got_mod_rewrite() || $GLOBALS['is_nginx'] || iis7_supports_permalinks() );

and when you check got_mod_rewrite() | Function | WordPress Developer Resources, you’ll see:

function got_mod_rewrite() {
	$got_rewrite = apache_mod_loaded( 'mod_rewrite', true );

and then, when you check apache_mod_loaded() | Function | WordPress Developer Resources you’ll see :

function apache_mod_loaded( $mod, $default_value = false ) {
	global $is_apache;

	if ( ! $is_apache ) {
		return false;
	}

	$loaded_mods = array();

	if ( function_exists( 'apache_get_modules' ) ) {
		$loaded_mods = apache_get_modules();

		if ( in_array( $mod, $loaded_mods, true ) ) {
			return true;
		}
	}

	if ( empty( $loaded_mods )
		&& function_exists( 'phpinfo' )
		&& ! str_contains( ini_get( 'disable_functions' ), 'phpinfo' )
	) {
		ob_start();
		phpinfo( INFO_MODULES );
		$phpinfo = ob_get_clean();

		if ( str_contains( $phpinfo, $mod ) ) {
			return true;
		}
	}

	return $default_value;
}

If this function returns false, WordPress will not detect mod_rewrite and index.php will be added to permalinks.

The global $is_apache

$is_apache = strstr($_SERVER['SERVER_SOFTWARE'], 'Apache')

will be false, because $_SERVER[‘SERVER_SOFTWARE’] will contain string(1) ” ” in PHP-FPM, so the result will be false, and finally got_url_rewrite() will return false, so WordPress will behave as if there is no mod_rewrite available, even if it is, just “one lever higher”.

So in general my question is — is there a known quick solution, or should I simply rewrite the got_url_filter like this:

add_filter('got_url_rewrite', 'enable_url_rewrite');
function enable_url_rewrite($got_url_rewrite) {
    return true;
}

to force url rewriting in this case?

• This reply was modified 12 months ago by Thomas Szteliga.