PHPCodeChecker - PHPCodeChecker is a best-in-class service that enables developers and PHP programmers to write their code online and analyze it.
Paiza.io - Paiza.io allows you to write and run code in many languages.
Rapid PHP - Rapid PHP editor is the world's fastest and lightest PHP IDE for Windows with code intelligence and tools for PHP, HTML, CSS, and JavaScript, including PHP debugger, FTP/SFTP client, UTF-8 support and more.
OnlinePHPFunctions - OnlinePHPFunctions is a powerful online code tester that lets you add PHP source code and view its output on your favorite web browser.
PHPHub.net Code Checker - Validate your PHP code online. Detect errors and ensure syntax accuracy with our PHP code checker.
3V4L - 3V4L is the best online PHP shell that you can use to write the PHP code and test it online.