Description
  
   There is no function named main except
   in the PHP source.  In PHP 4.3.0, a new type of error handling
   in the PHP source (php_error_docref) was introduced.  One feature
   is to provide links to a manual page in PHP error messages when
   the PHP directives html_errors
   (on by default) and docref_root
   (on by default until PHP 4.3.2) are set.
  
  
   Sometimes error messages refer to a manual page for the function
   main which is why this page exists.   If you
   discover such a reference, please
   » file a bug report, indicating
   the PHP function caused the error that linked to main
   and it will be fixed and properly documented.
  
  
   
    Known errors that point to main
    
     
      
       | Function name | No longer points here as of | 
     
     
      
       | include | 5.1.0 | 
      
       | include_once | 5.1.0 | 
      
       | require | 5.1.0 | 
      
       | require_once | 5.1.0 |