ctype_alnum()

ctype_alnum()

function ctype_alnum(string $text): bool

Checks if all characters in the string are alphanumeric.

Parameters:

• $text (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/ctype_alnum.rs).

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

Internals

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