Stdlib: file_get_contents and readfile for templates/assets

[PurHur]

Problem

No file I/O builtins. Web apps read HTML templates and config files.

Goal

Read-only file access safe for compiled binaries.

Tasks

• file_get_contents(string $path): string — VM + JIT
• readfile for streaming static assets (optional)
• Path restrictions: compile-time constant paths preferred; document sandbox limits for AOT
• PHPT with fixture file in test/fixtures/

Security

Document that AOT binaries embed filesystem access—deploy carefully.

Acceptance criteria

echo file_get_contents(__DIR__.'/template.html'); works when file exists beside script.