The Display class outputs colored output that will work on virtually any terminal. It utilizes the escape coding that goes back to the days of the DEC VT-100. It can be used anywhere, but is geared toward messages during PHPUnit tests cases.

It is a standalone static class with no dependencies.

The following code will create the output below:

    // echo out the escaped strings to create different levels of warnings
    echo Display::warning("Warning!");
    echo Display::caution("Caution...");
    echo Display::OK("OK to go!");

    // place the escaped string in the $message field to light up your output
    $this->assertSame("one","two",Display::caution("This assertion has intentionally failed"));