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To understand how rules extension works in Sonar, please refer to the Extending Coding Rules documentation.

Extending PHP_Codesniffer Rules

PHP_CodeSniffer is built on an extensible architecture where you can define you own rules.

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• "PEAR" is the folder found in the "Standards" directory of PHPCodeSniffer install directory
• "Commenting" is the folder found in the "Sniffs" directory of the "PEAR" folder
• "FileComment" is the name of the PHP file "FileCommentSniff.php" for which "Sniff.php" was removed
• "TagIndent" is the name of the error that can be found in "FileCommentSniff.php" file

Extending PHPMD Rules

Extending PHPMD works the same way as PHP_CodeSniffer, except that you have to copy your file containing your custom violations in $SONAR_HOME/extensions/rules/phppmd_rules/

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