CodeIgniter white page on cPanel

After cPanel upgrade from EasyApache3 to EasyApache4 all my CodeIgniter installations just broke on that server, returning just a white page without any error message. I spent more than one hour trying to figure out what the problem is. While testing out I noticed empty files named like these “0bce68a7a37e584ace98f0fd242a237d1662613e” or “296eed9bfb533552b0c3a9c8fdd784067eea216d”   (without any extension) started popping in my project folder. I figured out that these must be session paths so something is wrong with that.

I tried enabling php error logging but it didn’t help since it didn’t log anything since all code is right and it was working before but it just stopped after I started using EasyApache4.

So I went and enabled CodeIgniter logging that proved to be a better idea. To enable it open config.php for editing, locate

$config['log_threshold'] = 0;

And change that value to 4. That will enable internal logging system and logs will be saved in /application/logs folder. What I found out just conf

ERROR - 2016-11-29 22:36:29 --> Severity: Warning --> mkdir(): Invalid path Session_files_driver.php 117
ERROR - 2016-11-29 22:36:29 --> Severity: error --> Exception: Session: Configured save path '' is not a directory, doesn't exist or cannot be created. Session_files_driver.php 119

My session save path at config.php was set to null:

$config['sess_save_path'] = NULL;

Once I got it changed to default (alternatively you can set it up to any other folder you want locally, so you can have full control over your sessions):

$config['sess_save_path'] = sys_get_temp_dir();

everything started working again! Now this is second time I have similar quiet errors with CodeIgniter where it reports absolutely nothing – instead it just gives white screen and this can be really frustrating to debug.

 



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