Parse git log with PHP to an array

git_history.php

<?php
// Author: Ngo Minh Nam

$dir = "/path/to/your/repo/";
$output = array();
chdir($dir);
exec("git log", $output);
$history = array();
foreach($lines as $key => $line) {
	if(strpos($line, 'commit') === 0 || $key + 1 == count($lines)){
		if(!empty($commit)){
			$commit['message'] = substr($commit['message'], 4);
			array_push($history, $commit);	
			unset($commit);
		}
		$commit['hash'] = substr($line, strlen('commit') + 1);
	} else if(strpos($line, 'Author') === 0){
		$commit['author'] = substr($line, strlen('Author:') + 1);
	} else if(strpos($line, 'Date') === 0){
		$commit['date'] = substr($line, strlen('Date:') + 3);
	} elseif (strpos($line, 'Merge') === 0) {
		$commit['merge'] = substr($line, strlen('Merge:') + 1);
		$commit['merge'] = explode(' ', $commit['merge']);
	} else {
		if(isset($commit['message'])) {
			$commit['message'] .= $line;
		} else {
			$commit['message'] = $line;
		}
	}
}
print_r($history);