How can I use PHP closure function like function() use() on PHP 5.2 version?

Question

How can I use PHP closure function like function() use() on PHP 5.2 version as it has no support for anonymous functions?

Currently my code is something like below

Answer 1

Something like that should do:

$this->init(create_function('','
    $taxonomy_name = '.var_export($taxonomy_name,TRUE).'; 
    $plural = '.var_export($plural,TRUE).'; 
    $post_type_name = '.var_export($post_type_name,TRUE).'; 
    $options = '.var_export($options,TRUE).'; 

    $options = array_merge(
       array(
          "hierarchical" => false,
          "label" => $taxonomy_name,
          "singular_label" => $plural,
          "show_ui" => true,
          "query_var" => true,
          "rewrite" => array("slug" => strtolower($taxonomy_name))
        ), $options
      );

      // name of taxonomy, associated post type, options
      register_taxonomy(strtolower($taxonomy_name), $post_type_name, $options);
'));