StackOverflow Reputation Audit Parser.php

<?php
$audit = file_get_contents('audit.txt');
$audit = split("\n", $audit);
$data = Array();
for ($i=0; $i!=count($audit); $i++) {
	$line = $audit[$i];
	$datatype = substr($line, 0, 1);
	switch ($datatype) {
		case '-':
			$day = substr($line, 3, 10);
			$repPlus = str_replace(' ', '', substr($line, 19, 3));
			if (isset($_GET['debug'])) {
			echo 'Found day '.$day.' on line '.$i.' (rep +'.$repPlus.')<br />';
			}
			$data[] = Array('date' => $day, 'rep' => $repPlus);
			break;
		case ' ':
			if (isset($_GET['debug'])) {
			echo 'Skipped day detail on line '.$i.'<br />';
			}
			break;
		case '*':
			if (isset($_GET['debug'])) {
			echo $i.': '.substr($line, 2).'<br />';
			}
			break;
		default:
			if (isset($_GET['debug'])) {
			echo 'Skipped unknown on line '.$i.'<br />';
			}
			break;
	}
}
if (isset($_GET['debug'])) {
echo '<hr /><b>JSON code follows</b><br /><code>';
}
echo json_encode($data);
if (isset($_GET['debug'])) {
echo '</code>';
}
?>