Protect URL Custom Field Menggunakan Shortcode PMS

PAKAI TEKS:
<?php
    $my_full = get_post_meta( get_the_ID(), 'full', true);
        if( ! empty( $my_full ) ) {
        echo do_shortcode('[pms-restrict subscription_plans="38"]<a href=' . $my_full . ' target="_blank">DOWNLOAD</a>[/pms-restrict]');
    }
?>

PAKAI GAMBAR:
<?php
    $my_full = get_post_meta( get_the_ID(), 'full', true);
        if( ! empty( $my_full ) ) {
        echo do_shortcode('[pms-restrict subscription_plans="38"]<a href=' . $my_full . ' target="_blank"><img src="http://pustakakoran.com/pdf.png"></a>[/pms-restrict]');
    }
?>