Silex service provider to handle PHP errors, dump variables, execute PHP code remotely in Google Chrome
Helps you debug Behat scenarios by stopping execution in between steps
Emulates the SQL query constructed by PDO. The magic behind: A simple function that combines your parameters and the raw query. Not perfect, but does the job.
Xdebug — Step Debugger and Debugging Aid for PHP
Kint - a powerful and modern PHP debugging tool.