Schau doch mal in die php.ini rein. Nur die wichtigsten Variablen sind mom vom Panel aus editierbar.
Was verwendest du als php-service?
Du hast dir die ini und conf-Dateien unter /etc/php5/ glaube genauer (/etc/php5/apache2) wirklich angeschaut?
PS: in den Dateien darf man auch Parameter setzen, sofern nicht vorhanden^^
PS²: alle Änderungen dort müssten bei einem imscp-Update überschrieben werden.
Hello ;
If you are using ITK, you must edit the apache vhost file to allow your PHP scripts to set the max_execution_time directive by using the ini_set() function because, for safety reasons, we have set it with php_admin_value instead of php_value. As stated in the PHP documentation, when a value is set with php_admin_value in a vhost file, this value cannot be overridden. Normally the max_execution_time directive can be set using the ini_set() function but here, due to the restriction as explained before, this will not have any effect. You must so change php_admin_value by php_value in the related apache vhost file and restart Apache. Once it's done, your PHP scripts will be able to override the time limit using the ini_set() function or the set_time_limit() function without any restriction 
10 points only 
It's a shame. It's even worse than the score that we obtained at the EUROVISION (CHUCKLES) 