This is almost always a case of poor deployment practices. Common causes include:
The problem is not what the script does , but where it lives . This file resides inside the vendor/ directory, which in many misconfigured production environments is still accessible via the web root. index of vendor phpunit phpunit src util php eval-stdin.php
A: Composer is a dependency manager that installs dependencies in the vendor directory, which is used by PHPUnit. This is almost always a case of poor deployment practices