Console Clear - Symfony Console Component

Question

I'm writing a console app using Symfony 2 Console Component, and I want to run a console clear command before (or as) the first line of my app.

I have done some research and am struggling to find if this is possible.

Community · Accepted Answer · 2017-05-23 12:25:29Z

I have been looking for similar functionality. There is nothing built-in to the symfony console that can clear the screen as far as I can tell, but you can still achieve the clear behavior by using the escape code for resetting the terminal like so:

$output->write(sprintf("\033\143"));

See the post "Clear the Ubuntu bash screen for real" and "What commands can I use to reset and clear my terminal?" for a more extensive explanation of the codes, and this symfony console pull request, where I got the code from, that attempted to emulate the clear functionality.

Even though PHP has a shell_exec('<any terminal command>') it did not work for me for clearing the terminal with a clear. But sending \033\143 to the output worked, which I think is the escape code for CTRL + C on a mac.

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