PHP Remove HTML Tag Cleaning Text

We can parse HTML page to collect only normal text with PHP function  strip_tags()
for example to using this functoin in bilow

Example to using  PHP strip_tags()

    $html_page="<a href='test.php'>This is my page </a>";  
   $txt.=strip_tags($html_page);  

The output is return

This is my page

Note** If we have complex HTML page the output is not perfect we need to clean it self for example

   $description.=" ".strip_tags(trim($html_page))." ".$main_term;  
   $description = ereg_replace( "\n", " ", $description);  
   $description = ereg_replace( "\r", " ", $description);  
   $description = ereg_replace( " ", " ", $description);  
   $description = ereg_replace( " ", " ", $description);  
   $description = ereg_replace( " ", " ", $description);  
   $description = ereg_replace( " ", " ", $description);