Eliminate a payment gateway on cart conditions

Eliminates a payment gateway when cart contains an item with a fractional quantity. Useful for gateways that can’t handle fractional quantities like PayPal.

add_filter( 'woocommerce_available_payment_gateways', function( $available_gateways ) {

	// Skip Admin Area
	if( is_admin() ) {
		return $available_gateways;
	}

	// Loop Cart Items
	foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {

		// Detect Fractional Quantity
		if( strpos( $cart_item['quantity'], '.' ) ) {

			// Found One, Remove PayPal And Stop Checking
			unset( $available_gateways['paypal'] );
			break;

		}

	}

	// Default
	return $available_gateways;

} );

Instructions for Eliminate a payment gateway on cart conditions

  1. Log into a staging or locally hosted clone of your site.
  2. Install and activate Code Snippets plugin.
  3. WP Admin > Snippets > Add New
  4. Copy and paste the code from the section above.
  5. Check to ensure formatting came over properly.
  6. Customize the code as desired.
  7. Add a meaningful title.
  8. Select whether to run on front-end or back-end (or both).
  9. Click “Save and Activate”.
  10. Test your site to ensure it works.
  11. Disable if any problems, or recover.
  12. Repeat for live environment.

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License

All code snippets are licensed GPLv2 (or later) matching WordPress licensing.

Except when otherwise stated in writing the copyright holders and/or other parties provide the program as-is without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

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