"Checking /etc/cl.selector/php.conf" message in LVE Manager - Selector tab

Symptoms

The PHP Selector doesn't work and shows error messages in LVE Manager -> Selector tab. For example:

Checking /etc/cl.selector/php.conf
Block Directive = magic_quotes_gpc Default = On type = bool Remark =

Or something like that:

Undefined error Traceback (most recent call last): File "/opt/alt/python27/lib/python2.7/site-packages/clselector/cl_selector.py", line 253, in run self.run_get()
...
Could not load data from /etc/cl.selector/php.conf: Error at line 89: Required separator = not found. 
Please see http://docs.cloudlinux.com/index.html?custom_php_ini_options.html

Solution

In both cases, there's probably a syntax error in the /etc/cl.selector/php.conf file. If you have made some changes in that file recently, try to revert them. The following cldiag command should provide you with more insights into that:

cldiag --check-php-conf

You can find more information on the check-php-conf part of cldiag's utility here:
https://docs.cloudlinux.com/command-line_tools/#check-php-conf