# 5.2 Version
Since Phing 2.4.2 it is possible to include a `phingVersion` attribute in the `<project>` tag. This attribute allows you to define the minimum Phing version required to execute a build file, in order to prevent compatibility issues.
```
<?xml version="1.0"?>
<project name="test" phingVersion="2.4.2" >
<!-- Everything else here -->
<project>
```
- Phing User Guide
- Preface
- 1. About this book
- 1.1. Authors
- 1.2. Copyright
- 1.3. License
- 1.4. DocBook
- 1.4.1. Building the documentation
- 1.4.2. Template for new tasks
- 1.4.3. Customization of the look & feel of the rendered outputs
- 1.4.4. DocBook v5 elements used in the manual and their meaning
- 2. Introduction
- 2.1. What Phing Is
- 2.2. Phing & Binarycloud: History
- 2.3. How Phing Works
- 2.4. Cool, so how can I help?
- 2.4.1. Participating in the development
- 3. Setting-up Phing
- 3.1. System Requirements
- 3.1.1. Operating Systems
- 3.1.2. Software Dependencies
- 3.2. Obtaining Phing
- 3.2.1. Distribution Files
- 3.2.2. Getting the latest source from Phing Git repository
- 3.3. Composer Install
- 3.4. Phar package
- 3.5. Running Phing
- 3.5.1. Command Line
- 3.5.2. Supported command line arguments
- 4. Getting started
- 4.1. XML And Phing
- 4.2. Writing A Simple Buildfile
- 4.2.1. Project Element
- 4.2.2. Target Element
- 4.2.2.1. Target attributes
- 4.2.3. Task Elements
- 4.2.4. Property Element
- 4.2.4.1. Built-in Properties
- 4.3. More Complex Buildfile
- 4.3.1. Handling source dependencies
- 4.4. Relax NG Grammar
- 5. Project components
- 5.1. Projects
- 5.2. Version
- 5.3. Project Components in General
- 5.4. Targets
- 5.5. Tasks
- 5.6. Types
- 5.6.1. Basics
- 5.6.2. Referencing Types
- 5.7. Basic Types
- 5.7.1. FileSet
- 5.7.2. FileList
- 5.7.3. FilterChains and Filters
- 5.7.4. File Mappers
- 5.8. Conditions
- 5.8.1. not
- 5.8.2. and
- 5.8.3. or
- 5.8.4. xor
- 5.8.5. os
- 5.8.6. equals
- 5.8.7. versioncompare
- 5.8.8. http
- 5.8.9. socket
- 5.8.10. hasfreespace
- 5.8.11. isset
- 5.8.12. contains
- 5.8.13. istrue
- 5.8.14. isfalse
- 5.8.15. ispropertytrue
- 5.8.16. ispropertyfalse
- 5.8.17. referenceexists
- 5.8.18. available
- 5.8.19. filesmatch
- 5.8.20. isfileselected
- 5.8.21. isfailure
- 5.8.22. matches
- 6. Extending Phing
- 6.1. Extension Possibilities
- 6.1.1. Tasks
- 6.1.2. Types
- 6.1.3. Mappers
- 6.2. Source Layout
- 6.2.1. Files And Directories
- 6.2.2. File Naming Conventions
- 6.2.3. Coding Standards
- 6.3. System Initialization
- 6.3.1. Wrapper Scripts
- 6.3.2. The Main Application (phing.php)
- 6.3.3. The Phing Class
- 6.4. System Services
- 6.4.1. The Exception system
- 6.5. Build Lifecycle
- 6.5.1. How Phing Parses Buildfiles
- 6.6. Writing Tasks
- 6.6.1. Creating A Task
- 6.6.2. Using the Task
- 6.6.3. Source Discussion
- 6.6.4. Task Structure
- 6.6.5. Includes
- 6.6.6. Class Declaration
- 6.6.7. Class Properties
- 6.6.8. The Constructor
- 6.6.9. Setter Methods
- 6.6.10. Creator Methods
- 6.6.11. init() Method
- 6.6.12. main() Method
- 6.6.13. Arbitrary Methods
- 6.7. Writing Types
- 6.7.1. Creating a DataType
- 6.7.2. Using the DataType
- 6.7.3. Source Discussion
- 6.7.3.1. Getters & Setters
- 6.7.3.2. The getRef() Method
- 6.8. Writing Mappers
- 6.8.1. Creating a Mapper
- 6.8.2. Using the Mapper
- A. Fact Sheet
- A.1. Built-In Properties
- A.2. Command Line Arguments
- A.3. Distribution File Layout
- A.4. Program Exit Codes
- A.5. The LGPL License
- A.6. The GFDL License
- B. Core tasks
- B.1. AdhocTaskdefTask
- B.1.1. Examples
- B.2. AdhocTypedefTask
- B.2.1. Example
- B.3. AppendTask
- B.3.1. Examples
- B.3.2. Supported Nested Tags
- B.4. ApplyTask
- B.4.1. Examples
- B.4.2. Supported Nested Tags
- B.5. AttribTask
- B.5.1. Example
- B.5.2. Supported Nested Tags
- B.6. AvailableTask
- B.6.1. Examples
- B.7. Basename
- B.7.1. Examples
- B.8. ChmodTask
- B.8.1. Examples
- B.8.2. Supported Nested Tags
- B.9. ChownTask
- B.9.1. Examples
- B.9.2. Supported Nested Tags
- B.10. ConditionTask
- B.10.1. Examples
- B.10.2. Supported Nested Tags
- B.11. CopyTask
- B.11.1. Examples
- B.11.2. Supported Nested Tags
- B.12. DefaultExcludes
- B.12.1. Examples
- B.13. DeleteTask
- B.13.1. Examples
- B.13.2. Supported Nested Tags
- B.14. DependSet
- B.14.1. Examples
- B.14.2. Supported Nested Tags
- B.15. Diagnostics
- B.15.1. Example
- B.16. Dirname
- B.16.1. Example
- B.17. EchoTask
- B.17.1. Examples
- B.17.2. Supported Nested Tags
- B.18. EchoPropertiesTask
- B.18.1. Example
- B.19. ExecTask
- B.19.1. Examples
- B.19.2. Supported Nested Tags
- B.20. FailTask
- B.20.1. Examples
- B.20.2. Parameters specified as nested elements.
- B.21. ForeachTask
- B.21.1. Examples
- B.21.2. Supported Nested Tags
- B.22. IfTask
- B.22.1. Examples
- B.23. ImportTask
- B.23.1. Target Overriding
- B.23.2. Special Properties
- B.23.3. Resolving Files Against the Imported File
- B.23.4. Examples
- B.24. IncludePathTask
- B.24.1. Examples
- B.25. InputTask
- B.25.1. Examples
- B.26. LoadFileTask
- B.26.1. Examples
- B.26.2. Supported Nested Tags:
- B.27. MkdirTask
- B.27.1. Examples
- B.28. MoveTask
- B.28.1. Examples
- B.28.2. Attributes and Nested Elements
- B.29. PathConvert
- B.30. PhingTask
- B.30.1. Examples
- B.30.2. Supported Nested Tags
- B.30.3. Base directory of the new project
- B.31. PhingCallTask
- B.31.1. Examples
- B.31.2. Supported Nested Tags
- B.32. Phingversion
- B.32.1. Example
- B.33. PhpEvalTask
- B.33.1. Examples
- B.33.2. Supported Nested Tags
- B.34. PropertyTask
- B.34.1. Examples
- B.34.2. Supported Nested Tags:
- B.35. PropertyPromptTask
- B.35.1. Examples
- B.36. Record
- B.36.1. Example
- B.37. ReflexiveTask
- B.37.1. Examples
- B.37.2. Supported Nested Tags:
- B.38. ResolvePathTask
- B.38.1. Examples
- B.39. Retry
- B.39.1. Example
- B.40. RunTargetTask
- B.40.1. Example
- B.41. SleepTask
- B.41.1. Example
- B.42. SwitchTask
- B.42.1. Supported Nested Tags
- B.42.2. Examples
- B.43. TaskdefTask
- B.43.1. Examples
- B.43.2. Supported Nested Tags
- B.44. Tempfile Task
- B.44.1. Example
- B.45. TouchTask
- B.45.1. Examples
- B.45.2. Supported Nested Tags
- B.46. TruncateTask
- B.46.1. Examples
- B.47. TryCatchTask
- B.47.1. Examples
- B.48. TstampTask
- B.48.1. Examples
- B.48.2. Supported Nested Tags
- B.49. TypedefTask
- B.49.1. Examples
- B.49.2. Supported Nested Tags
- B.50. UpToDateTask
- B.50.1. Examples
- B.50.2. Supported Nested Tags
- B.51. WaitForTask
- B.51.1. Examples
- B.51.2. Supported Nested Tags
- B.52. XsltTask
- B.52.1. Examples
- B.52.2. Supported Nested Tags
- C. Optional tasks
- C.1. ApiGenTask
- C.1.1. Example
- C.2. AutoloaderTask
- C.2.1. Example
- C.3. ComposerTask
- C.3.1. Supported Nested Tags
- C.4. CoverageMergerTask
- C.4.1. Example
- C.4.2. Supported Nested Tags
- C.5. CoverageReportTask
- C.5.1. Example
- C.5.2. Supported Nested Tags
- C.6. CoverageSetupTask
- C.6.1. Example
- C.6.2. Supported Nested Tags
- C.7. CoverageThresholdTask
- C.7.1. Example
- C.7.2. Supported Nested Tags
- C.8. DbDeployTask
- C.8.1. Example
- C.9. ExportPropertiesTask
- C.9.1. Example
- C.10. FileHashTask
- C.10.1. Example
- C.11. FileSizeTask
- C.11.1. Example
- C.12. FileSyncTask
- C.12.1. Examples
- C.13. FtpDeployTask
- C.13.1. Example
- C.13.2. Supported Nested Tags
- C.14. GitArchiveTask
- C.14.1. Example
- C.15. GitBranchTask
- C.15.1. Example
- C.16. GitCheckoutTask
- C.16.1. Example
- C.17. GitCloneTask
- C.17.1. Example
- C.18. GitCommitTask
- C.18.1. Example
- C.18.2. Supported Nested Tags
- C.19. GitFetchTask
- C.19.1. Example
- C.20. GitGcTask
- C.20.1. Example
- C.21. GitInitTask
- C.21.1. Example
- C.22. GitLogTask
- C.22.1. Example
- C.23. GitMergeTask
- C.23.1. Example
- C.24. GitPullTask
- C.24.1. Example
- C.25. GitPushTask
- C.25.1. Example
- C.26. GitTagTask
- C.26.1. Example
- C.27. GitDescribeTask
- C.27.1. Example
- C.28. GrowlNotifyTask
- C.28.1. Examples
- C.29. HgAddTask
- C.29.1. Example
- C.29.2. Supported Nested Tags
- C.30. HgArchiveTask
- C.30.1. Example
- C.31. HgCloneTask
- C.31.1. Example
- C.32. HgCommitTask
- C.32.1. Example
- C.33. HgInitTask
- C.33.1. Example
- C.34. HgLogTask
- C.34.1. Example
- C.35. HgPullTask
- C.35.1. Example
- C.36. HgPushTask
- C.36.1. Example
- C.37. HgRevertTask
- C.37.1. Example
- C.38. HgTagTask
- C.38.1. Example
- C.39. HgUpdateTask
- C.39.1. Example
- C.40. HipchatTask
- C.40.1. Example
- C.41. HttpGetTask
- C.41.1. Example
- C.41.2. Supported Nested Tags
- C.41.3. Global configuration
- C.42. HttpRequestTask
- C.42.1. Example
- C.42.2. Supported Nested Tags
- C.42.3. Global configuration
- C.43. IniFileTask
- C.43.1. Supported Nested Tags
- C.43.2. Example
- C.44. IoncubeEncoderTask
- C.44.1. Example
- C.44.2. Supported Nested Tags
- C.45. IoncubeLicenseTask
- C.45.1. Example
- C.45.2. Supported Nested Tags
- C.46. JsHintTask
- C.46.1. Example
- C.46.2. Supported Nested Tags
- C.47. JslLintTask
- C.47.1. Example
- C.47.2. Supported Nested Tags
- C.48. JsMinTask
- C.48.1. Example
- C.48.2. Supported Nested Tags
- C.49. JsonValidateTask
- C.49.1. Example
- C.50. LiquibaseTask
- C.50.1. Example
- C.50.2. Supported Nested Tags
- C.51. LiquibaseChangeLogTask
- C.51.1. Example
- C.51.2. Supported Nested Tags
- C.52. LiquibaseDbDocTask
- C.52.1. Example
- C.52.2. Supported Nested Tags
- C.53. LiquibaseDiffTask
- C.53.1. Example
- C.53.2. Supported Nested Tags
- C.54. LiquibaseRollbackTask
- C.54.1. Example
- C.54.2. Supported Nested Tags
- C.55. LiquibaseTagTask
- C.55.1. Example
- C.55.2. Supported Nested Tags
- C.56. LiquibaseUpdateTask
- C.56.1. Example
- C.56.2. Supported Nested Tags
- C.57. MailTask
- C.57.1. Example
- C.57.2. Supported Nested Tags
- C.58. ManifestTask
- C.58.1. Supported Nested Tags
- C.59. NotifySendTask
- C.60. PackageAsPathTask
- C.60.1. Example
- C.61. ParallelTask
- C.61.1. Example
- C.62. PatchTask
- C.62.1. Example
- C.63. PathToFileSetTask
- C.63.1. Examples
- C.64. PDOSQLExecTask
- C.64.1. Example
- C.64.2. Supported Nested Tags
- C.65. PearPackageTask
- C.65.1. Example
- C.65.2. Supported Nested Tags
- C.66. PearPackage2Task
- C.66.1. Example
- C.66.2. Supported Nested Tags
- C.67. PharDataTask
- C.67.1. Example
- C.67.2. Supported Nested Tags
- C.68. PharPackageTask
- C.68.1. Example
- C.68.2. Supported Nested Tags
- C.69. PhkPackageTask
- C.69.1. Example
- C.69.2. Supported Nested Tags
- C.70. PhpCodeSnifferTask
- C.70.1. Examples
- C.70.2. Supported Nested Tags
- C.71. PHPCPDTask
- C.71.1. Examples
- C.71.2. Supported Nested Tags
- C.72. PHPLocTask
- C.72.1. Examples
- C.72.2. Supported Nested Tags
- C.73. PHPMDTask
- C.73.1. Example
- C.73.2. Supported Nested Tags
- C.74. PhpDependTask
- C.74.1. Example
- C.74.2. Supported Nested Tags
- C.75. PhpDocumentor2Task
- C.75.1. Example
- C.75.2. Supported Nested Tags
- C.76. PhpLintTask
- C.76.1. Example
- C.76.2. Supported Nested Tags
- C.77. PHPUnitTask
- C.77.1. Supported Nested Tags
- C.77.2. Example
- C.77.3. Supported Nested Tags
- C.78. PHPUnitReport
- C.78.1. Example
- C.79. PropertyCopy
- C.79.1. Example
- C.80. PropertyRegexTask
- C.80.1. Match expressions
- C.80.2. Replace
- C.80.3. Example
- C.81. ReplaceRegexpTask
- C.81.1. Supported Nested Tags
- 1. PropertySelector
- 1.1. Select expressions
- 1.2. Example
- C.82. rSTTask
- C.82.1. Features
- C.82.2. Examples
- C.82.3. Supported Nested Tags
- C.83. S3PutTask
- C.83.1. Example
- C.83.2. Supported Nested Tags
- C.84. S3GetTask
- C.84.1. Example
- C.85. SassTask
- C.85.1. Example
- C.85.2. Supported Nested Tags
- C.86. ScpTask
- C.86.1. Example
- C.86.2. Supported Nested Tags
- C.87. SmartyTask
- C.88. SonarTask
- C.88.1. Examples
- C.88.1.1. Minimal Example
- C.88.1.2. Full Example
- C.88.2. Supported Nested Tags
- C.89. SortList
- C.89.1. Example
- C.90. SshTask
- C.90.1. Example
- C.90.2. Supported Nested Tags
- C.91. SvnCheckoutTask
- C.91.1. Example
- C.92. SvnCommitTask
- C.92.1. Example
- C.93. SvnCopyTask
- C.93.1. Example
- C.94. SvnExportTask
- C.94.1. Example
- C.95. SvnInfoTask
- C.95.1. Example
- C.96. SvnLastRevisionTask
- C.96.1. Example
- C.97. SvnListTask
- C.97.1. Example
- C.98. SvnLogTask
- C.98.1. Example
- C.99. SvnUpdateTask
- C.99.1. Example
- C.100. SvnSwitchTask
- C.100.1. Example
- C.101. SvnProplistTask
- C.101.1. Example
- C.102. SvnPropgetTask
- C.102.1. Example
- C.103. SvnPropsetTask
- C.103.1. Example
- C.104. StopwatchTask
- C.104.1. Example
- C.105. SymfonyConsoleTask
- C.105.1. Examples
- C.105.2. Supported Nested Tags
- C.106. SymlinkTask
- C.106.1. Example
- C.106.2. Supported Nested Tags
- C.107. TarTask
- C.107.1. Example
- C.107.2. Supported Nested Tags
- C.108. ThrowTask
- C.108.1. Example
- C.109. UntarTask
- C.109.1. Example
- C.109.2. Supported Nested Tags
- C.110. UnzipTask
- C.110.1. Example
- C.110.2. Supported Nested Tags
- C.111. Variable
- C.111.1. Example
- C.112. VersionTask
- C.112.1. Example
- C.113. WikiPublishTask
- C.113.1. Example
- C.114. XmlLintTask
- C.114.1. Examples
- C.114.2. Supported Nested Tags
- C.115. XmlPropertyTask
- C.115.1. Example
- C.116. ZendCodeAnalyzerTask
- C.116.1. Example
- C.116.2. Supported Nested Tags
- C.117. ZendGuardEncodeTask
- C.117.1. Example
- C.117.2. Supported Nested Tags
- C.118. ZendGuardLicenseTask
- C.118.1. Examples
- C.119. ZipTask
- C.119.1. Example
- C.119.2. Supported Nested Tags
- C.120. ZSDTPackTask
- C.120.1. Example
- C.121. ZSDTValidateTask
- C.121.1. Example
- D. Core Types
- D.1. Description
- D.1.1. Usage Examples
- D.2. Excludes
- D.2.1. Nested tags
- D.2.2. Usage Examples
- D.3. FileList
- D.3.1. Usage Examples
- D.4. FileSet
- D.4.1. Using wildcards
- D.4.2. Usage Examples
- D.4.3. Nested tags
- D.4.4. Related types
- D.5. DirSet
- D.5.1. Using wildcards
- D.5.2. Usage Examples
- D.5.3. Nested tags
- D.5.4. Related types
- D.6. PatternSet
- D.6.1. Usage Example
- D.6.2. Nested tags
- D.7. Path / Classpath
- D.7.1. Nested tags
- D.8. PearPackageFileSet
- D.8.1. Usage Examples
- D.8.2. Nested tags
- E. Core filters
- E.1. PhingFilterReader
- E.1.1. Nested tags
- E.1.2. Advanced
- E.2. ExpandProperties
- E.3. ConcatFilter
- E.4. HeadFilter
- E.5. IconvFilter
- E.6. Line Contains
- E.6.1. Nested tags
- E.7. LineContainsRegexp
- E.7.1. Nested tags
- E.8. PrefixLines
- E.9. ReplaceTokens
- E.9.1. Nested tags
- E.10. ReplaceTokensWithFile
- E.10.1. Nested tags
- E.11. ReplaceRegexp
- E.11.1. Nested tags
- E.12. SortFilter
- E.13. StripLineBreaks
- E.14. StripLineComments
- E.14.1. Nested tags
- E.15. StripPhpComments
- E.16. StripWhitespace
- E.17. TabToSpaces
- E.18. TailFilter
- E.19. TidyFilter
- E.19.1. Nested tags
- E.20. XincludeFilter
- E.21. XsltFilter
- E.21.1. Nested tags
- F. Core mappers
- F.1. Common Attributes
- F.2. ChainedMapper
- F.2.1. Examples
- F.3. CompositeMapper
- F.3.1. Examples
- F.4. FirstMatchMapper
- F.4.1. Examples
- F.5. CutDirsMapper
- F.5.1. Examples
- F.6. FlattenMapper
- F.6.1. Examples
- F.7. GlobMapper
- F.7.1. Examples
- F.8. IdentityMapper
- F.9. MergeMapper
- F.9.1. Examples
- F.10. RegexpMapper
- F.10.1. Examples
- G. Core selectors
- G.1. Contains
- G.2. Date
- G.3. Depend
- G.4. Depth
- G.5. Different
- G.6. Filename
- G.7. Present
- G.8. Containsregexp
- G.9. Size
- G.10. Type
- G.11. And
- G.12. Majority
- G.13. None
- G.14. Not
- G.15. Or
- G.16. Readable
- G.17. Writable
- G.18. Executable
- G.19. Selector
- G.20. Symlink Selector
- H. Project Components
- H.1. Phing Projects
- H.1.1. Example
- H.1.2.
- H.1.3. Attributes
- H.2. Targets
- H.2.1. Example
- H.2.2. Attributes
- I. Loggers and Listeners
- I.1. Listeners
- I.2. Loggers
- I.3. DefaultLogger
- I.4. MailLogger
- I.5. NoBannerLogger
- I.6. ProfileLogger
- I.7. StatisticsListener
- I.8. TimestampedLogger
- J. File Formats
- J.1. Build File Format
- J.2. Property File Format
- Bibliography
- International Standards
- Licenses
- Open Source Projects
- Manuals
- Other Resources