How to increase maximum execution time in laravel?

I want to upload large excel file. But because the file contains many rows, the loading is so slow and I got this error:

FatalErrorException in Controller.php line 457: Maximum execution time of 120 seconds exceeded

I already put this on my .htaccess:

<IfModule mod_php5.c>
    php_value max_execution_time 1500
    php_value upload_max_filesize 15M
</IfModule>

I also add this at the top of the controller:

ini_set('memory_limit', '3000M');
ini_set('max_execution_time', '0');

I also change max_execution_time at the php.ini:

max_execution_time = 300

And also add this on config.inc.php:

$cfg['ExecTimeLimit'] = 0;

I wonder why it's not work at all and keep getting me into that error... Is there a miss at the code? Any help would be appreciate, Thanks!

via Chebli Mohamed