1.2.0

• Added runCode and runCodeWithData methods so PHP code can be executed from memory instead of from a file.
• Hardened input handling to prevent command injection.
• Altered thrown error message to include PHP error output instead of being written directly to stderr.
• Altered error thrown when failing to start PHP at all. It now reports the underlying spawn error instead of PHP process exited with code undefined.
• Added TypeScript definitions for run and runWithData, which were previously missing.
• Updated various dependencies.