As you may know according to the default configuration of CakePHP the debug and error log is generated in the same file. But this can be changed in a few simple steps. All you have to do is following.

  1. Got to config/app.php
  2. Find the ‘Log’ configuration array
  3. In both debug and error replace the ‘file’ with “’debug-‘ . date(‘Y-m-d’),” and “’error-‘ . date(‘Y-m-d’),” respectively
  4. Save the file and you are good to go.

Now, the log will be generated on a daily basis.