ini_set not working

display_errors

may be set at runtime (with ini_set()), but it won't have any affect if the script has fatal errors. This is because the desired runtime action does not get executed.

Use ini_set('display_errors','Off');

safe_mode

This feature has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0. This directive belongs to PHP_INI_SYSTEM and Cannot be set via ini_set()

allow_url_include

Use ini_set('allow_url_include', 'On');

allow_url_fopen

This directive belongs to PHP_INI_SYSTEM and Cannot be set via ini_set()

These variables cannot be changed within a user script. The access value means:

PHP_INI_SYSTEM    4          Entry can be set in php.ini or httpd.conf  

You can try to set it in .htaccess:

php_value  allow_url_include 1