Admin textarea input field for WooCommerce

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I am looking for a way to add texarea custom input for woocommerce general tab. I already try woocommerce_wp_text_input but it shows one line input. Is there any way to add multiple line input under the general tab?

woocommerce backend wordpress textarea php
2 Answers

Just use woocommerce_wp_textarea_input opposite woocommerce_wp_text_input

So you get:

// Add field
function action_woocommerce_product_options_general_product_data() {
    // Textarea Field
    woocommerce_wp_textarea_input( array(
        'id'          => '_my_field_id',
        'label'       => __( 'My label', 'woocommerce' ),
        'desc_tip'    => true,
        'description' => __( 'Some description', 'woocommerce' ),
    ));
}
add_action( 'woocommerce_product_options_general_product_data', 'action_woocommerce_product_options_general_product_data', 10, 0 );

// Save Field
function action_woocommerce_admin_process_product_object( $product ) {
    if( isset( $_POST['_my_field_id'] ) ) {
        $product->update_meta_data( '_my_field_id', esc_html( $_POST['_my_field_id'] ) );
    }
}
add_action( 'woocommerce_admin_process_product_object', 'action_woocommerce_admin_process_product_object', 10, 1 );
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