如何在同一行显示 Laravel artisan 命令输出？
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How to display Laravel artisan command output on same line?
提问by eComEvo
I would like to display processing progress using a simple series of dots. This is easy in the browser, just do echo '.'and it goes on the same line, but how do I do this on the same line when sending data to the artisan commandline?
我想使用一系列简单的点来显示处理进度。这在浏览器中很容易，只需执行echo '.'并在同一行上进行，但是在将数据发送到工匠命令行时如何在同一行上执行此操作？
Each subsequent call to $this->info('.')puts the dot on a new line.
每次后续调用都会$this->info('.')将点放在新行上。
回答by marcanuy
The method infouses writeln, it adds a newline at the end, you need to use writeinstead.
方法info使用writeln，它在末尾添加一个换行符，您需要使用write代替。
//in your command
$this->output->write('my inline message', false);
$this->output->write('my inline message continues', false);
回答by Jonas Carlbaum
Probably a little bit of topic, since you want a series of dots only. But you can easily present a progress bar in artisan commands using built in functionality in Laravel.
可能有点主题，因为您只想要一系列点。但是您可以使用 Laravel 中的内置功能轻松地在工匠命令中显示进度条。
Declare a class variable like this:
像这样声明一个类变量：
protected $progressbar;
And initialize the progress bar like this, lets say in fire() method:
并像这样初始化进度条，让我们在 fire() 方法中说：
$this->progressbar = $this->getHelperSet()->get('progress');
$this->progressbar->start($this->output, Model::count());
And then do something like this:
然后做这样的事情：
foreach (Model::all() as $instance)
{
$this->progressbar->advance(); //do stuff before or after this
}
And finilize the progress when done by calling this:
并在完成后通过调用以下方法完成进度：
$this->progressbar->finish();
Update: For Laravel 5.1+The simpler syntax is even more convenient:
更新：对于 Laravel 5.1+更简单的语法更方便：
- Initialize
$bar = $this->output->createProgressBar(count($foo)); - Advance
$bar->advance(); - Finish
$bar->finish();
- 初始化
$bar = $this->output->createProgressBar(count($foo)); - 进步
$bar->advance(); - 结束
$bar->finish();
回答by Igor Pantovi?
If you look at the source, you will see that $this->infois actually just a shortcut for $this->output->writeln: Source.
如果您查看源代码，您会发现它$this->info实际上只是$this->output->writeln: Source的快捷方式。
You could use $this->output->write('<info>.</info>')to make it inline.
你可以$this->output->write('<info>.</info>')用来使它内联。
If you find yourself using this often you can make your own helper method like:
如果您发现自己经常使用它，则可以制作自己的辅助方法，例如：
public function inlineInfo($string)
{
$this->output->write("<info>$string</info>");
}
