Xdebug Explained

Xdebug
Developer:	Derick Rethans
Released:	^[1]
Programming Language:	C
Language:	English
Genre:	Debugger
License:	Permissive license, derived from the MIT license
Latest Release Version:	3.2.1

Xdebug is a PHP extension which provides debugging and profiling capabilities.^[2] It uses the DBGp debugging protocol.

The debug information that Xdebug can provide includes the following:

• stack and function traces in error messages^[3] with:

• full parameter display for user defined functions

• function name, file name and line indications

• support for member functions
• memory allocation
• protection for infinite recursions

Xdebug also provides:

• profiling information for PHP scripts^[4]
• code coverage analysis
• capabilities to debug your scripts interactively with a debugger front-end.^[5]

Xdebug is also available via the PECL.^[6]

See also

• Debugger
• Dynamic program analysis
• Software performance analysis
• Optimization
• DBG (another open source PHP debugger)
• Zend Studio (the Zend Debugger is an alternative to Xdebug)

External links

• • Xdebug in PECL
• Xdebug trace log visualization tool

Notes and References

1. Web site: Rethans . Derick . Release version 0.7.0 . github . 16 May 2020.
2. Book: McArthur , Kevin . Pro PHP: Patterns, Frameworks, Testing and More. limited. 2008-03-24. Apress. New York City, New York. 978-1-59059-819-1. 120 – 124. Testing, Development, and Continuous Integration.
3. Book: Sklar. David. Trachtenberg. Adam. PHP Cookbook. 2nd. 2009-05-11. O'Reilly Media. Sebastopol, CA. 978-0-596-10101-5. 618 – 619. Error Handling, Debugging, and Testing.
4. Book: Henderson , Cal . Building Scalable Web Sites . https://archive.org/details/buildingscalable0000hend/page/170 . registration . 2006-05-16 . . . 0-596-10235-6 . 170 – 171 . Bottlenecks.
5. Book: Masters. Jon. Blum. Richard. Professional Linux Programming. 2007-03-12. John Wiley & Sons. Hoboken, New Jersey. 978-0-471-77613-0. 426. LAMP.
6. Book: Gerner. Jason. Naramore. Elizabeth. Owens. Morgan L.. Warden. Matt. Gerner. Jason. Professional LAMP: Linux, Apache, MySQL and PHP Web Development. limited. 2005-12-05. John Wiley & Sons. Hoboken, New Jersey. 0-7645-9723-X. 197. PEAR and PECL.