How can PHP be integrated with command-line tools like a2ps to facilitate printing text content on a Linux server?

To integrate PHP with command-line tools like a2ps for printing text content on a Linux server, you can use PHP's exec() function to execute the a2ps command with the desired text content as input. This allows you to generate a formatted print-ready output from your PHP script.

<?php
$textContent = "This is the text content to be printed.";
$command = "echo '" . $textContent . "' | a2ps -o - | lpr";
exec($command);
?>