#!/usr/bin/env php
<?php

/*
 * This command line utility reads the optional PHP error log
 * and converts the times to UTC so the events can be cross-referenced in the
 * application logfile.
 *
 */

if ($argc > 2) {
	$dest_tz = $argv[2];
}
else {
	$dest_tz = 'UTC';
}

if ($argc > 1) {
	$file = $argv[1];
}
else {
	$file = 'php.out';
}

if ($file === '-') {
	$file = 'php://stdin';
}

$lines = @file($file);
if (! $lines) {
	exit (0);
}

if ($lines) {
	foreach ($lines as $line) {
		if (substr($line,0,1) === "[") {
			$ts = rtrim(substr($line,1,strpos($line,"]")),"]");
			if ($ts) {
				$arr = explode(' ', $ts);
				if (count($arr) === 3) {
					$ti = new DateTimeZone($arr[2]);
					$d = new DateTime($arr[1] . ' ' . $arr[2]);
					$to = new DateTimeZone($dest_tz);
					$d->setTimeZone($to);
					$o = $d->format("Y-m-d H:i:s");
					echo "[" . $o . "]" . substr($line,strlen($ts) + 2);
				}
			}
		}
		else {
			echo $line;
		}
	}
}