PHP Sandbox
online
Free
onlinephp.io
What it does
Online PHP execution environment that lets you run code snippets safely. Useful for testing what decoded malware actually does without risking your system.
When to use it
- Testing decoded PHP output
- Understanding what suspicious functions do
- Quick syntax checks
When not to use it
- Running actual malware payloads
- Code that requires file system access
- Code with external dependencies
Limitations
- Limited execution time
- No file system access
- Some dangerous functions disabled