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Explore PHP application profiling using Xdebug in this comprehensive 90-minute video tutorial featuring Derick Rethans. Learn how to install and enable the Xdebug extension, profile various PHP examples including hello-world and factorial functions, and analyze composer configurations. Discover how to use profiling front-ends like qcachegrind to visualize call graphs and identify application bottlenecks. Gain insights into Xdebug's capabilities, including single-step debugging, enhanced var_dump() functionality, stack traces, and code coverage for PHPUnit. Witness the performance improvements achieved by compiling Xdebug 3 and apply these techniques to optimize your PHP applications.
