add custom field to product woocommerce code example

Example 1: add custom field to variation woocommerce

/**
 * @snippet       Add Custom Field to Product Variations - WooCommerce
 * @how-to        Get CustomizeWoo.com FREE
 * @sourcecode    https://businessbloomer.com/?p=73545
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 3.5.6
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */
 
// -----------------------------------------
// 1. Add custom field input @ Product Data > Variations > Single Variation
 
add_action( 'woocommerce_variation_options_pricing', 'bbloomer_add_custom_field_to_variations', 10, 3 );
 
function bbloomer_add_custom_field_to_variations( $loop, $variation_data, $variation ) {
woocommerce_wp_text_input( array(
'id' => 'custom_field[' . $loop . ']',
'class' => 'short',
'label' => __( 'Custom Field', 'woocommerce' ),
'value' => get_post_meta( $variation->ID, 'custom_field', true )
)
);
}
 
// -----------------------------------------
// 2. Save custom field on product variation save
 
add_action( 'woocommerce_save_product_variation', 'bbloomer_save_custom_field_variations', 10, 2 );
 
function bbloomer_save_custom_field_variations( $variation_id, $i ) {
$custom_field = $_POST['custom_field'][$i];
if ( isset( $custom_field ) ) update_post_meta( $variation_id, 'custom_field', esc_attr( $custom_field ) );
}
 
// -----------------------------------------
// 3. Store custom field value into variation data
 
add_filter( 'woocommerce_available_variation', 'bbloomer_add_custom_field_variation_data' );
 
function bbloomer_add_custom_field_variation_data( $variations ) {
$variations['custom_field'] = '<div class="woocommerce_custom_field">Custom Field: <span>' . get_post_meta( $variations[ 'variation_id' ], 'custom_field', true ) . '</span></div>';
return $variations;
}

Example 2: how to add custom divs to woocommerce product page

<li <?php wc_product_class( '', $product ); ?>>
    <div class="col-md-5 offset-md-1">
        <?php
        /**
         * Hook: woocommerce_before_shop_loop_item.
         *
         * @hooked woocommerce_template_loop_product_link_open - 10
         */
        do_action( 'woocommerce_before_shop_loop_item' );

        /**
         * Hook: woocommerce_before_shop_loop_item_title.
         *
         * @hooked woocommerce_show_product_loop_sale_flash - 10
         * @hooked woocommerce_template_loop_product_thumbnail - 10
         */
        do_action( 'woocommerce_before_shop_loop_item_title' );
        ?>
    </div>
    <?php

    /**
     * Hook: woocommerce_shop_loop_item_title.
     *
     * @hooked woocommerce_template_loop_product_title - 10
     */
    do_action( 'woocommerce_shop_loop_item_title' );

    /**
     * Hook: woocommerce_after_shop_loop_item_title.
     *
     * @hooked woocommerce_template_loop_rating - 5
     * @hooked woocommerce_template_loop_price - 10
     */
    do_action( 'woocommerce_after_shop_loop_item_title' );

    /**
     * Hook: woocommerce_after_shop_loop_item.
     *
     * @hooked woocommerce_template_loop_product_link_close - 5
     * @hooked woocommerce_template_loop_add_to_cart - 10
     */
    do_action( 'woocommerce_after_shop_loop_item' );
    ?>
</li>

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Misc Example