Super simple logger for php. For those times when you are just throwing something together for a quick hack.

Logger.php

<?php
class Logger {
    static function debug($msg) {
        $file = dirname(__FILE__) . "/debug.log";
        $output = strftime('%Y-%m-%d %T ') . ":" . $msg . "\n";
        file_put_contents($file, $output, FILE_APPEND);
    }
}

Here's how to use it:

require_once 'Logger.php';

Logger::debug("Here is my message");

In debug.log, you will see the output:
2016-11-23 22:12:45 Here is my message