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(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
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.
This function has no parameters.
No value is returned.
See readline_callback_handler_install() for an example of how to use the readline callback interface.
