session_id() — internals

session_id() — internals

Where it lives

• Signature: crates/elephc-builtin-contract/src/catalog_data.rs
• Lowering: src/web_prelude/build.rs:2950 (session_id)
• Function symbol: session_id()

Lowering notes

• Implemented by the compiler-injected web prelude.

Semantic descriptor

Shared contract implemented by an injected elephc-PHP prelude.

EIR and runtime boundary

Implemented by an injected elephc-PHP prelude.

Signature summary

function session_id(?string $id = null): mixed

What the type checker enforces

• Arity: takes 0–1 arguments (1 optional).

Eval interpreter (magician)

Not callable from eval’d code — the magician interpreter has no entry for this builtin.

Cross-references

• User reference for session_id()