清除PHP CLI输出 [英] Clear PHP CLI output

问题描述

我正在尝试在我的PHP CLI应用程序上运行一个实时"进度指示器.而不是输出为

I'm trying to get a "live" progress indicator working on my php CLI app. Rather than outputting as

1Done
2Done
3Done

我希望它清除并仅显示最新结果. system("command \ C CLS")不起作用.也没有ob_flush()，flush()或我发现的其他任何东西.

I would rather it cleared and just showed the latest result. system("command \C CLS") doesnt work. Nor does ob_flush(), flush() or anything else that I've found.

我正在运行Windows 7 64位旗舰版，我注意到命令行输出是实时的，这是意外的.每个人都警告我说，不会...但是可以... 64位特权吗?

I'm running windows 7 64 bit ultimate, I noticed the command line outputs in real time, which was unexpected. Everyone warned me that out wouldn't... but it does... a 64 bit perk?

为帮助喝彩！

如果可以的话，我想避免回显24行.

I want to avoid echoing 24 new lines if I can.

推荐答案

尝试输出一行文本，并以"\ r"而不是"\ n"结尾.

Try outputting a line of text and terminating it with "\r" instead of "\n".

"\ n"字符是换行符，可转到下一行，而"\ r"只是将光标返回到同一行的位置0的返回.

The "\n" character is a line-feed which goes to the next line, but "\r" is just a return that sends the cursor back to position 0 on the same line.

因此您可以:

echo "1Done\r";
echo "2Done\r";
echo "3Done\r";

等

请确保在"\ r"之前输出一些空格，以清除该行的先前内容.

Make sure to output some spaces before the "\r" to clear the previous contents of the line.

可选:对某些历史感兴趣背景? Wikipedia在"\ n"(换行)和

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