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
Manual
readline_callback_read_char(
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.
Parameters
This function has no parameters.
Return Values
No value is returned.