While PHP does not come with a full toolkit for debugging and profiling, an open-source project has existed almost as long as PHP to provide both: Xdebug. Created and maintained by PHP core developer ...

Debugging a PHP application if often more difficult than debugging an application in some other programming language. There are two reasons for this. First, a PHP application rarely consists of only ...

One of the simplest and often overlooked ways of getting basic debug information from PHP is to use the error_log function. This can be used to print any data you are interested in to a file. This ...