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Conditionally show/hide WooCommerce checkout fields - http://calebburks.com/conditionally-showhide-woocommerce-checkout-fields
<?php
/**
* Plugin Name: Conditional WooCommerce Checkout Fields
* Description: Adds the abilitiy to conditionally show / hide checkout fields.
* Version: 1.0
* Author: Caleb Burks
* Author URI: http://calebburks.com
*/
/**
* Check if a specific product ID is in the cart
*/
function wc_ninja_product_is_in_the_cart( $ids ) {
// Products currently in the cart
$cart_ids = array();
// Find each product in the cart and add it to the $cart_ids array
foreach( WC()->cart->get_cart() as $cart_item_key => $values ) {
$cart_product = $values['data'];
$cart_ids[] = $cart_product->id;
}
// If one of the special products are in the cart, return true.
if ( ! empty( array_intersect( $ids, $cart_ids ) ) ) {
return true;
} else {
return false;
}
}
/**
* Check if a specific product category is in the cart
*/
function wc_ninja_category_is_in_the_cart( $categories ) {
// Products currently in the cart
$cart_ids = array();
// Categories currently in the cart
$cart_categories = array();
// Find each product in the cart and add it to the $cart_ids array
foreach( WC()->cart->get_cart() as $cart_item_key => $values ) {
$cart_product = $values['data'];
$cart_ids[] = $cart_product->id;
}
// Connect the products in the cart w/ their categories
foreach( $cart_ids as $id ) {
$products_categories = get_the_terms( $id, 'product_cat' );
// Loop through each product category and add it to our $cart_categories array
foreach ( $products_categories as $products_category ) {
$cart_categories[] = $products_category->slug;
}
}
// If one of the special categories are in the cart, return true.
if ( ! empty( array_intersect( $categories, $cart_categories ) ) ) {
return true;
} else {
return false;
}
}
/**
* Check if a specific coupon was used
*/
function wc_ninja_coupon_was_used( $coupons ) {
// Coupons Used
$coupons_used = WC()->cart->applied_coupons;
// If ones of our special coupons were used, return true.
if ( in_array( $coupons, $coupons_used ) ) {
return true;
} else {
return false;
}
}
/**
* Conditionally remove checkout fields
*/
function wc_ninja_remove_checkout_field( $fields ) {
$product_ids = array( '45', '70', '75' );
$categories = array( 'clothing', 'posters' );
$coupons = array( 'flat_discout', 'free_shipping' );
// If a special coupon was not used, hide the Company Field
if ( ! wc_ninja_coupon_was_used( $coupons ) ) {
unset( $fields['billing']['billing_company'] );
}
// If a special category is in the cart, hide the First Name Field
if ( wc_ninja_category_is_in_the_cart( $categories ) ) {
unset( $fields['billing']['billing_first_name'] );
}
// If a special product is not in the cart, hide the Phone Number Field
if ( ! wc_ninja_product_is_in_the_cart( $product_ids ) ) {
unset( $fields['billing']['billing_phone'] );
}
return $fields;
}
add_filter( 'woocommerce_checkout_fields' , 'wc_ninja_remove_checkout_field' );
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