In WooCommerce I need to apply a custom handling fee for a specific payment gateway.
A custom handling fee for percentage cost and a custom handling for per fixed cost.
I have this 2 pieces of codes:
A) PERCENTAGE COST – function
/************************************************************/ /* PERCENTACE COST **/ // Add a custom fee based o cart subtotal // Add a custom fee based o cart subtotal add_action( 'woocommerce_cart_calculate_fees', 'custom_percentage_fee', 20, 1 ); function custom_percentage_fee ( $cart ) { if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return; if ( ! ( is_checkout() && ! is_wc_endpoint_url() ) ) return; // Only checkout page $payment_method = WC()->session->get( 'chosen_payment_method' ); if ( 'cod' == $payment_method ) { $surcharge = $cart->subtotal * 0.025; $cart->add_fee( 'Percentage Cost', $surcharge, true ); } } // jQuery - Update checkout on methode payment change add_action( 'wp_footer', 'custom_checkout_jqscript' ); function custom_checkout_jqscript() { if ( ! ( is_checkout() && ! is_wc_endpoint_url() ) ) return; // Only checkout page ?> <script type="text/javascript"> jQuery( function($){ $('form.checkout').on('change', 'input[name="payment_method"]', function(){ $(document.body).trigger('update_checkout'); }); }); </script> <?php }
Result frontend
B) FIXED COST – function
/************************************************************/ /* FIXED COST **/ // Add a custom fee based o cart subtotal add_action( 'woocommerce_cart_calculate_fees', 'custom_fixed_fee', 10, 1 ); function custom_fixed_fee ( $cart ) { if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return; if ( 'cod' === WC()->session->get('chosen_payment_method') ) { $fee = 0.31; $cart->add_fee( 'Fixed Cost', $fee, true ); } } // jQuery - Update checkout on methode payment change add_action( 'wp_footer', 'custom_checkout_jqscript' ); function custom_checkout_jqscript() { if ( is_checkout() && ! is_wc_endpoint_url() ) : ?> <script type="text/javascript"> jQuery( function($){ $('form.checkout').on('change', 'input[name="payment_method"]', function(){ $(document.body).trigger('update_checkout'); }); }); </script> <?php endif; }
Result frontend
The two distinct functions work perfectly separately. Now, I would like to combine the two functions to get the sum of the two costs.
My code attempt (A + B): function evolution with addition other payment systems
add_action( 'woocommerce_cart_calculate_fees', 'custom_percentage_fee', 20, 1 ); function custom_percentage_fee ( $cart ) { if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return; if ( ! ( is_checkout() && ! is_wc_endpoint_url() ) ) return; // Only checkout page $payment_method = WC()->session->get( 'chosen_payment_method' ); if ( 'stripe' == $payment_method ) { $surcharge = $cart->subtotal * 0.025; $fee = 0.31; } if ( 'paypal_credit_card_rest' == $payment_method ) { $surcharge = $cart->subtotal * 0.036; $fee = 0.35; } if ( 'paypal_express' == $payment_method ) { $surcharge = $cart->subtotal * 0.036; $fee = 0.35; } if ( 'bacs' == $payment_method ) { return; } $together = $surcharge + $fee; $cart->add_fee( 'Plus Cost', $together, true ); } // jQuery - Update checkout on methode payment change add_action( 'wp_footer', 'custom_checkout_jqscript' ); function custom_checkout_jqscript() { if ( ! ( is_checkout() && ! is_wc_endpoint_url() ) ) return; // Only checkout page ?> <script type="text/javascript"> jQuery( function($){ $('form.checkout').on('change', 'input[name="payment_method"]', function(){ $(document.body).trigger('update_checkout'); }); }); </script> <?php }
The function returns the following errors:
Notice: Undefined variable: surcharge in /MY-FOLDER…./snippet-ops.php(446) : eval()’d code on line 79
Notice: Undefined variable: fee in /MY FOLDER…./snippet-ops.php(446) : eval()’d code on line 79
That is exactly here:
$together = $surcharge + $fee;
Result frontend
Any advice on how to combine the 2 codes above into 1?
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Answer
The difference between the 2 examples you’ve posted is really minimal. You can just use:
if ( 'cod' == $payment_method ) { $surcharge = $cart->subtotal * 0.025; $fee = 0.31; $together = $surcharge + $fee; $cart->add_fee( 'Plus Cost', $together, true ); }