I am getting the error for PHP Stan command failed, as mentioned in the issu...

1. I am getting the error for PHP Stan command failed, as mentioned in the issue description, but not getting any error related to "No files found to analyse".
   
2. When I debugged the analyze method of the DeprecationAnalyzer class, I found that the Process class is not returning output on line 373, and as a result, we are getting null in $json.
   
3. Further, the condition check implemented for checking any JSON errors is returning true, and it is showing errors, although the PHP stan command is being executed successfully without any errors.
   

Anyone can please look into this and implement a solution to resolve the issue mentioned above.