PHP error in shortcode [closed]

You are not using proper syntax, so you are likely getting a syntax error. You are using some strange sign in your code where you should be using a single quote ('). Also, use curly brackets to enclose a condition. It is easier to debug

<?php 
    if(function_exists('wooslider')){ 

echo do_shortcode('[wooslider slider_type="posts" limit="3" link_title="true" layout="text-bottom" overlay="full" category="homepage-feature-post"]'); 
}
?>