Xdebug
Xdebug is a PHP extension which provides debugging and profiling capabilities.[2] It uses the DBGp debugging protocol.
 | |
 An Xdebug error message on Wikimedia Commons | |
| Developer(s) | Derick Rethans |
|---|---|
| Initial release | May 8, 2002[1] |
| Stable release | 2.9.5
/ April 25, 2020 |
| Repository |  |
| Written in | C |
| Available in | English |
| Type | Debugger |
| License | Permissive license, derived from the MIT license |
| Website | xdebug |
UML component diagram for Xdebug and PHP, integrated via the browser and an IDE
The debug information that Xdebug can provide includes the following:
- 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)
References
- Rethans, Derick. "Release version 0.7.0". github. Retrieved 16 May 2020.
- McArthur, Kevin (2008-03-24). "Testing, Development, and Continuous Integration". Pro PHP: Patterns, Frameworks, Testing and More. New York City, New York: Apress. pp. 120 – 124. ISBN 1-59059-819-9.
- Sklar, David; Trachtenberg, Adam (2009-05-11). "Error Handling, Debugging, and Testing". PHP Cookbook (2nd ed.). Sebastopol, CA: O'Reilly Media. p. 618 – 619. ISBN 0-596-10101-5.
- Henderson, Cal (2006-05-16). "Bottlenecks". Building Scalable Web Sites. Sebastopol, CA: O'Reilly Media. pp. 170 – 171. ISBN 0-596-10235-6.
- Masters, Jon; Blum, Richard (2007-03-12). "LAMP". Professional Linux Programming. Hoboken, New Jersey: John Wiley & Sons. p. 426. ISBN 0-471-77613-0.
- Gerner, Jason; Naramore, Elizabeth; Owens, Morgan L.; Warden, Matt (2005-12-05). "PEAR and PECL". In Gerner, Jason (ed.). Professional LAMP: Linux, Apache, MySQL and PHP Web Development. Hoboken, New Jersey: John Wiley & Sons. p. 197. ISBN 0-7645-9723-X.
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