log.php

<?php
/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 nickvergessen
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

$log = <<<'EOT'
{ INSERT LOG HERE }
EOT;

$log = json_decode(trim($log), true, 4024);

if (substr($log['message'], 0, 11) === 'Exception: ') {
	$message = substr($log['message'], 11);
	$exception = json_decode($message, true);
	if ($exception === null) {
		$message = str_replace("\\", '\\\\', $message);
	}

	$exception = json_decode($message, true);

	if (isset($exception['Trace'])) {
		$exception['Trace'] = explode("\n", $exception['Trace']);
		$traces = [];
		foreach ($exception['Trace'] as $trace) {
			if (substr_count($trace, ' ') == 2) {
				list($index, $file, $code) = explode(' ', $trace, 3);
			} else {
				list($index, $file) = explode(' ', $trace, 2);
				$code = null;
			}
			$traces[$index] = [$file, $code];
		}
		$exception['Trace'] = $traces;
	}
	
	$log['message'] = array('Exception' => $exception);
} else if (substr($log['message'], 0, 10) === 'backtrace#') {
	$message = substr($log['message'], 10);
	#$message = str_replace("\\", '\\\\', $message);

	$exception = unserialize($message);

	if (isset($exception['Trace'])) {
		$exception['Trace'] = explode('\n', $exception['Trace']);
		$traces = [];
		foreach ($exception['Trace'] as $trace) {
			list($index, $file, $code) = explode(' ', $trace, 3);
			$traces[$index] = [$file, $code];
		}
		$exception['Trace'] = $traces;
	}
	
	$log['message'] = array('Exception' => $exception);
}
$output = json_encode($log, JSON_PRETTY_PRINT);
$output = str_replace(['\\\\\\/', '\\/', '\\\\'], ['/', '/', '\\'], $output);

echo str_replace(["\n", '\n', '    '], ['<br />', '<br />', '&nbsp;&nbsp;&nbsp;&nbsp;'], $output);//json_encode($log['message'], JSON_PRETTY_PRINT) . "\n";