WC_Form_Handler::checkout_action │ public static │ WC 1.0

Process the checkout form.

Method of the class: WC_Form_Handler{}

No Hooks.

Returns

null. Nothing (null).

Usage

$result = WC_Form_Handler::checkout_action();

WC_Form_Handler::checkout_action() code WC 10.3.5

woocommerce/includes/class-wc-form-handler.php 
public static function checkout_action() {
	if ( isset( $_POST['woocommerce_checkout_place_order'] ) || isset( $_POST['woocommerce_checkout_update_totals'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing
		wc_nocache_headers();

		if ( WC()->cart->is_empty() ) {
			wp_safe_redirect( wc_get_cart_url() );
			exit;
		}

		wc_maybe_define_constant( 'WOOCOMMERCE_CHECKOUT', true );

		WC()->checkout()->process_checkout();
	}
}