📄 tail.php

#!/usr/bin/env php
<?php declare (strict_types=1);

/**
 * This example can be used to logfile processing and basically wraps the tail
 * command.
 *
 * The benefit of using this, is that it allows you to tail multiple logs at
 * the same time
 *
 * To stop this application, hit CTRL-C
 */
if ($argc < 2) {
    echo "Usage: " . $argv[0] . " filename\n";
    exit(1);
}

require __DIR__ . '/../vendor/autoload.php';

$tail = popen('tail -fn0 ' . escapeshellarg($argv[1]), 'r');

\Sabre\Event\Loop\addReadStream($tail, function() use ($tail) {

    echo fread($tail, 4096);

});

\Sabre\Event\Loop\run();