Use PHP_CodeSniffer for modified lines only

php svn pre-commit-hook codesniffer

Or you can use EasyCodingStandard, that does this by default.

php svn pre-commit-hook codesniffer

Conceptually it does not make sense.

phpcs needs to know the hole context in order to analyze correctly.

Scanning only the changed lines would remove context.

php svn pre-commit-hook codesniffer

There is a project lint-diffs that can run any linter on diff output files.

Use phpcs --report=emacs as the command. The regex can be the same as the example config.

CodeHunter