readline_callback_read_char

(PHP 5 >= 5.1.0, PHP 7)

readline_callback_read_char — 当一个行被接收时读取一个字符并且通知 readline 调用回调函数

说明

void readline_callback_read_char ( void )

读取用户输入中的一个字符.当一行被接收时，这个函数将通知 readline 调用使用 readline_callback_handler_install() 安装的回调函数接口，并且这一个行已经准备输入.

返回值

没有返回值。

范例

See readline_callback_handler_install() for an example of how to use the readline callback interface.

参见

readline_callback_handler_install() - 初始化一个 readline 回调接口，然后终端输出提示信息并立即返回
readline_callback_handler_remove() - 移除上一个安装的回调函数句柄并且恢复终端设置

User Contributed Notes

Quis-NOZPAM- at omicidio-NOZPAM- dot nl 03-Aug-2006 01:43


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