readline_callback_read_char

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

readline_callback_read_charReads 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.

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

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User Contributed Notes 2 notes

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1
thflori
5 years ago
It seems this function is not blocking anymore:

<?php

do {
 
readline_callback_read_char();
 
$str = readline_info('line_buffer');
  echo
'.';
} while (
strlen($str) < 10);

echo
PHP_EOL . $str . PHP_EOL;

?>
up
-1
Quis-NOZPAM- at omicidio-NOZPAM- dot nl
17 years ago
Note that this function is blocking if there is no character to read
If you don`t want to get blocked, you should use the trick with stream_select()

It also only reads one char per call,
So if something else in your script is blocking,
you`ve got a problem
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