PHPhub

About PHPhub

PHPhub is an online PHP syntax checker that validates PHP code and highlights the specific line where a syntax error occurs. Users can paste code, drag and drop a PHP file, or type directly into a built-in code editor, then run a check that flags issues such as missing semicolons, unclosed parentheses, quotes, or braces, incorrect capitalization, undefined variables or functions, and malformed array or variable assignments. Checks can be run against multiple PHP versions, including 8.5.0, 8.3.6, 8.0.0, 7.4.8, and 5.6.40.

The tool also exposes an API for validating PHP code programmatically: a POST request to a version-specific endpoint returns a success response with no errors or an error response containing the parsed syntax error and line number.

It is intended for PHP developers who want to quickly locate and fix syntax errors in scripts without manual line-by-line review, in both browser-based and programmatic (API) workflows.

Key features

• Validates PHP syntax and highlights the exact line of an error
• Supports multiple PHP versions (8.5.0, 8.3.6, 8.0.0, 7.4.8, 5.6.40)
• In-browser code editor with copy-paste or drag-and-drop file input
• Public API for programmatic PHP syntax validation

Frequently asked questions