ncurses_beep

(PHP 4 >= 4.0.7, PHP 5 < 5.3.0, PECL ncurses >= 1.0.0)

ncurses_beep — Let the terminal beep

说明

ncurses_beep ( void ) : int

Warning

此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担。

ncurses_beep() sends an audible alert (bell) and if its not possible flashes the screen.

参见

ncurses_flash() - Flash terminal screen (visual bell)

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User Contributed Notes 2 notes

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arplynn at gmail dot com ¶

13 years ago


If you want to make the terminal beep on a PHP CLI application without needing the ncurses library, use the following code:

<?php

function cli_beep()
{
    echo "\x07";
}

?>

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divinity76 at gmail dot com ¶

11 months ago


arplynn's function has a subtle bug, if it's being called while ob_start()'s output buffering is active, it does not make the system beep, and worse, it may corrupt whatever data is being generated under OB, by inserting an unprintable ascii character in it. use fprintf to STDOUT to bypass OB, eg

<?php
function cli_beep() {
    fprintf ( STDOUT, "%s", "\x07" );
}

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