posix_ctermid
(PHP 4, PHP 5, PHP 7, PHP 8)
posix_ctermid — Get path name of controlling terminal
说明
Generates a string which is the pathname for the current controlling terminal for the process. On error this will set errno, which can be checked using posix_get_last_error()
参数
此函数没有参数。
返回值
Upon successful completion, returns string of the pathname to
the current controlling terminal. Otherwise false is returned and errno
is set, which can be checked with posix_get_last_error().
示例
示例 #1 posix_ctermid() example
This example will display the path to the current TTY.
<?php
echo "I am running from ".posix_ctermid();
?>参见
- posix_ttyname() - Determine terminal device name
- posix_get_last_error() - Retrieve the error number set by the last posix function that failed
＋添加备注
用户贡献的备注 1 note
phpmanual at remove dot mark dot griffin dot email ¶
8 years ago
You can write directly to the tty (screen) even when the shell has redirected output, with:
<?php
$h = fopen(posix_ctermid(), "rb+");
fwrite($h, "Testing direct output\n");
fclose($h);
?>备份地址：http://www.lvesu.com/blog/php/function.posix-ctermid.php