Conventional Commit Message Regex for PHP

What this pattern does

This page provides a comprehensive, battle-tested regular expression for matching conventional commit message, ported and verified for PHP. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your PHP project — whether you're validating in a Laravel validator, a WordPress plugin, or a standalone PHP script.

Php Implementation

<?php
// Conventional Commit Message
// ReDoS-safe | RegexVault — Dev & Systems > Git

define('CONVENTIONAL_COMMIT_MESSAGE_PATTERN', '/^(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert|wip)(?:\(([a-zA-Z0-9\-_\/]+)\))?(!)?: (.+)$/');

function validate_conventional_commit_message(string $input): bool {
    return (bool) preg_match(CONVENTIONAL_COMMIT_MESSAGE_PATTERN, $input);
}

// Example
var_dump(validate_conventional_commit_message("feat: add user authentication")); // bool(true)

Test Cases

When to use this pattern

This pattern is drawn from the Dev & Systems > Git category and carries a ReDoS-safe certification. That matters for PHP developers because especially relevant in PHP where PCRE backtracking limits can trigger silent failures on malicious input. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

Group 1 = type, group 2 = scope (optional), group 3 = ! breaking change (optional), group 4 = description. BREAKING CHANGE can also appear in the footer. Conventional commits enable automated changelog generation.