imagefilter() — internals

imagefilter() — internals

Where it lives

• Signature: crates/elephc-builtin-contract/src/catalog_data.rs
• Lowering: src/image_prelude.rs:3263 (imagefilter)
• Function symbol: imagefilter()

Lowering notes

• Implemented by the compiler-injected image 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 imagefilter(mixed $image, int $filter, int $arg1 = 0, int $arg2 = 0, int $arg3 = 0, int $arg4 = 0): bool

What the type checker enforces

• Arity: takes 2–6 arguments (4 optional).

Eval interpreter (magician)

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

Cross-references

• User reference for imagefilter()