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<readline_callback_handler_removereadline_clear_history>
^Readline FunctionsLast updated: Mon, 26 Oct 2026

readline_callback_read_char

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

readline_callback_read_char — Reads a character and informs the readline callback interface when a line is received

Description

function readline_callback_read_char(): void

Reads a character of user input. When a line is received, this function informs the readline callback interface installed using readline_callback_handler_install() that a line is ready for input.

This function is only available if the readline library PHP was built against supports it. It is not available on Windows.

Parameters

This function has no parameters.

Return Values

No value is returned.

Examples

See readline_callback_handler_install() for an example of how to use the readline callback interface.

See Also


<readline_callback_handler_removereadline_clear_history>
^Readline FunctionsLast updated: Mon, 26 Oct 2026