# readline_callback_read_char

(PHP 5 >= 5.1.0, PHP 7)

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

### Description

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.

### 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_install() - Initializes the readline callback interface and terminal, prints the prompt and returns immediately
- readline_callback_handler_remove() - Removes a previously installed callback handler and restores terminal settings