Flushes rewrite rules if siteurl, home or page_on_front changed.

Parameters

$old_valuestringrequired

$valuestringrequired

Source

function update_home_siteurl( $old_value, $value ) {
	if ( wp_installing() ) {
		return;
	}

	if ( is_multisite() && ms_is_switched() ) {
		delete_option( 'rewrite_rules' );
	} else {
		flush_rewrite_rules();
	}
}

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