php - Extract heading and paragraphs of a docx-file -

i need read docx-file i.e. headings , content of document in variables. i'm reading file this:

function read_file_docx($filename){     if(!$filename || !file_exists($filename)) return false;     $zip = zip_open($filename);     if (!$zip || is_numeric($zip)) return false;      while ($zip_entry = zip_read($zip)) {         if (zip_entry_open($zip, $zip_entry) == false) continue;         if (zip_entry_name($zip_entry) != "word/document.xml") continue;         $content .= zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));         zip_entry_close($zip_entry);     }     zip_close($zip);      //$striped_content = strip_tags($content);      return $striped_content; } 

my problem how i.e. heading1, heading2 , heading 3 , content of parts in array further processing.