str_starts_with()

str_starts_with()

function str_starts_with(string $haystack, string $needle): bool

Checks if a string starts with a given substring.

Parameters:

• $haystack (string)
• $needle (string)

Returns: bool

Availability

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

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

Internals

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