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Book Overview & Buying
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Table Of Contents
Learning PHP 7 High Performance
Xdebug is an extension for PHP that provides both debugging and profiling information for PHP scripts. Xdebug displays a full-stake trace information for errors, including function names, line numbers, and filenames. Also, it provides the ability to debug scripts interactively using different IDEs, such as Sublime Text, Eclipse, PHP Storm, and Zend Studio.
To check whether Xdebug is installed and enabled on our PHP installation, we need to check the phpinfo() details. On the phpinfo details page, search for Xdebug, and you should see details similar to the following screenshot:

This means that our PHP installation has Xdebug installed. Now, we need to configure Xdebug. Either the Xdebug configuration will be in the php.ini file, or it will have its separate .ini file. At our installation, we will have a separate 20-xdebug.ini file placed at the /etc/php/7.0/fpm/conf.d/ path.
For the purpose of this book, we will use the Homestead Vagrant box from Laravel. It provides complete tools...