mb_ereg_match() — internals

mb_ereg_match() — internals

Where it lives

• Signature: src/builtins/string/mb_ereg_match.rs
• Lowering: src/codegen/lower_inst/builtins/regex.rs:52 (lower_mb_ereg_match)
• Function symbol: lower_mb_ereg_match()

Lowering notes

• Lowers mb_ereg_match(pattern, subject, options = null) as a start-anchored regex match.
• The bare delimiter-less pattern and subject use the shared regex string loader. Optional
• options are passed as a string pair when present, or as (0, 0) for null/omitted options.

Runtime helpers

The following runtime helpers are referenced:

• __rt_mb_ereg_match

Signature summary

function mb_ereg_match(string $pattern, string $subject, string $options = null): bool

What the type checker enforces

• Arity: takes 2–3 arguments (1 optional).

Cross-references

• User reference for mb_ereg_match()