Developer tool

PHP Syntax Checker

Paste PHP code and get real parse errors with line numbers - checked by an actual PHP engine, never executed. Catches smart quotes and BOM issues too.

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One-time $25 · all 199 tools included · no subscription, ever

Why people use PHP Syntax Checker

Use PHP Syntax Checker right in your browser - no downloads, no extensions, no setup
Built for real workflows: fast, keyboard-friendly, and dark-mode ready
Your code and data are processed for you alone - never shared or resold
One account unlocks the whole developer toolbox, not just this tool

Frequently asked questions

Is PHP Syntax Checker free to use?

Xerion works on a simple one-time license: $25 once, no subscription, and every tool on the platform is included - PHP Syntax Checker and 198 others. New accounts can look around before buying.

Is my data private when I use PHP Syntax Checker?

Yes - PHP Syntax Checker runs in your browser tab. Your code never leaves your machine for the client-side tools, and account-based tools store data only in your own Xerion account.

Do I need to install anything to use PHP Syntax Checker?

No. PHP Syntax Checker runs in any modern browser on Windows, Mac, Linux, iPhone, and Android. There is nothing to download, update, or uninstall.

Does PHP Syntax Checker work on my phone?

Yes - every Xerion tool is built mobile-first, and PHP Syntax Checker works on any phone or tablet with a modern browser.

What else is included with PHP Syntax Checker?

Your license unlocks all 199 tools on Xerion - developer tools like this one, plus PDF tools, planners, trackers, generators, and more. Browse the full directory to see everything.

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One license. Every tool. Forever.

PHP Syntax Checker and 198 other tools for a single one-time $25. No subscription. No ads. No upsells mid-task.

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