woocommerce_product_data_panels usage example

woocommerce_product_data_panels.php

<?php
 
add_action( 'woocommerce_product_data_panels', 'show_ppwp_access_link_tab_content' );
function show_ppwp_access_link_tab_content() {
	global $woocommerce, $post;
	?>
	<div id="ppwp_woo_options" class="panel woocommerce_options_panel">
		<?php
		woocommerce_wp_select(
			array(
				'id'      => '_ppwp_woo_protected_post',
				'label'   => __( 'Protected post', 'woocommerce' ),
				'options' => array(
					'0' => '-- Select a password protected page --',
				),
			)
		);

		woocommerce_wp_text_input(
			array(
				'id'                => '_ppwp_woo_usage_limit',
				'label'             => __( 'Usage limit', 'woocommerce' ),
				'desc_tip'          => 'true',
				'description'       => __( 'Enter the number of times user can access the link.', 'woocommerce' ),
				'type'              => 'number',
				'custom_attributes' => array(
					'min'  => '1',
					'step' => '1',
				),
			)
		);

		woocommerce_wp_text_input(
			array(
				'id'                => '_ppwp_woo_expiration',
				'label'             => __( 'Expiration (minutes)', 'woocommerce' ),
				'desc_tip'          => 'true',
				'description'       => __( 'Enter the number of minutes the link is valid for.', 'woocommerce' ),
				'type'              => 'number',
				'custom_attributes' => array(
					'min'  => '1',
					'step' => '1',
				),
			)
		);

		woocommerce_wp_textarea_input(
			array(
				'id'          => '_ppwp_woo_custom_text',
				'label'       => __( 'Custom text', 'woocommerce' ),
				'desc_tip'    => 'true',
				'description' => __( 'Insert any text that you want to include in the order product details. The text within the percent sign % %  will become Bypass URL. Use {usage_limit} to display password usage limit and {expiration} to display expiry date.', 'woocommerce' ),
			)
		);
		?>
	</div>
	<?php
}