Profiling PHP Applications with Xdebug | Rawkode Live
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In this episode, joined by Derick Rethans, we take a look at Xdebug and how it help you profile your PHP applications, allowing you to use a profiling front-end, like qcachegrind, to visualise your call graphs and dig into the bottlenecks of your applications. Xdebug is an extension for PHP to assist with debugging and development. - It contains a single step debugger to use with IDEs - It upgrades PHP's var_dump() function - It adds stack traces for Notices, Warnings, Errors and Exceptions - It features functionality for recording every function call and variable assignment to disk - It contains a profiler - It provides code coverage functionality for use with PHPUnit 🕰 Timeline 00:00 - Holding Screen 01:55 - Introductions 06:30 - What are we going to profile? 11:30 - Installing and enabling Xdebug extension with Pecl 17:40 - Profiling our hello-world example 28:20 - Profiling our factorial example 46:20 - Profiling our simple composer configuration 57:30 - Profiling our complex composer configuration 1:09:00 - Compiling Xdebug 3 for the performance gains! 1:13:00 - Profiling our complex composer configuration with much gains 🌎 Links Derick Rethans - https://twitter.com/derickr Xdebug - https://xdebug.org/
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