add-user-field-file-to-member-links.php

<?php
/**
 * Add a user field file to the member links section.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_member_links_bottom_link_file_user_field() {

	$user_field_name = 'user_field_name_here'; // Your user field name for file.
	// $link_text       = 'Your Link Text Here'; // Optional: Your link text. Uncomment to use.

	$user_id = get_current_user_id(); // Get the user ID.

	// Do we have an active member and PMPro 3.0 or newer?
	if ( empty( $user_id ) || ! pmpro_hasMembershipLevel() || ! function_exists( 'pmpro_get_user_field' ) ) {
		return;
	}

	$user_field = pmpro_get_user_field( $user_field_name ); // Get the user field object.

	// Do we have a user field and is it a file field?
	if ( empty( $user_field ) || ( ! empty( $user_field ) ) && $user_field->type !== 'file' ) {
		return;
	}

	// Use the user field label as the link text if not set.
	if ( empty( $link_text ) ) {
		$link_text = $user_field->label;
	}

	$user_field_value = get_user_meta( $user_id, $user_field_name, true ); // Get the user field value.

	// Do we have a user field value and is it an array with a fullurl key?
	if ( ! empty( $user_field_value ) && is_array( $user_field_value ) && ! empty( $user_field_value['fullurl'] ) ) {
		?>
		<li><a href="<?php echo esc_url( $user_field_value['fullurl'] ); ?>" target="_blank"><?php echo esc_html( $link_text ); ?></a></li>
		<?php
	}
}
add_action( 'pmpro_member_links_bottom', 'my_pmpro_member_links_bottom_link_file_user_field' );