strripos()

strripos()

function strripos(string $haystack, string $needle, int $offset = 0): mixed

Finds the numeric position of the last case-insensitive occurrence of a substring.

Parameters:

• $haystack (string)
• $needle (string)
• $offset (int), default 0, optional

Returns: mixed

Availability

• Compiled (AOT): supported by the Elephc code generator.
• eval() (magician interpreter): supported — declarative interpreter builtin (crates/elephc-magician/src/interpreter/builtins/string/strripos.rs).

No examples yet — check examples/ and showcases/ for usage patterns.

Internals

For how strripos is implemented in the compiler, see the internals page.