ob_get_clean

Supported Versions: PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8
Get the contents of the active output buffer and turn it off
<?php ob_get_clean(): string|false
<?php     ->setCode(function (InputInterface $input, OutputInterface $output): int {

        ob_start();

        phpinfo();

        $phpinfo = ob_get_clean();

        $output->write($phpinfo);

        return Command::SUCCESS;

    })