/includes/functions.inc.php

<?PHP
	function set_option($key, $val)
	{
		$db = Database::getDatabase();
		$db->query('REPLACE INTO options (`key`, `value`) VALUES (:key, :value)', array('key' => $key, 'value' => $val));
	}

	function get_option($key, $default = null)
	{
		$db = Database::getDatabase();
		$db->query('SELECT `value` FROM options WHERE `key` = :key', array('key' => $key));
		if($db->hasRows())
			return $db->getValue();
		else
			return $default;
	}
    function printr($var)
    {
        $output = print_r($var, true);
        $output = str_replace("\n", "<br>", $output);
        $output = str_replace(' ', '&nbsp;', $output);
        echo "<div style='font-family:courier;'>$output</div>";
    }

    // Formats a given number of seconds into proper mm:ss format
    function format_time($seconds)
    {
        return floor($seconds / 60) . ':' . str_pad($seconds % 60, 2, '0');
    }

    // Given a string such as "comment_123" or "id_57", it returns the final, numeric id.
    function split_id($str)
    {
        return match('/[_-]([0-9]+)$/', $str, 1);
    }

    // Creates a friendly URL slug from a string
    function slugify($str)
    {
        $str = preg_replace('/[^a-zA-Z0-9 -]/', '', $str);
        $str = strtolower(str_replace(' ', '-', trim($str)));
        $str = preg_replace('/-+/', '-', $str);
        return $str;
    }

    // Computes the *full* URL of the current page (protocol, server, path, query parameters, etc)
    function full_url()
    {
        $s = empty($_SERVER['HTTPS']) ? '' : ($_SERVER['HTTPS'] == 'on') ? 's' : '';
        $protocol = substr(strtolower($_SERVER['SERVER_PROTOCOL']), 0, strpos(strtolower($_SERVER['SERVER_PROTOCOL']), '/')) . $s;
        $port = ($_SERVER['SERVER_PORT'] == '80') ? '' : (":".$_SERVER['SERVER_PORT']);
        return $protocol . "://" . $_SERVER['HTTP_HOST'] . $port . $_SERVER['REQUEST_URI'];
    }

    // Returns an English representation of a past date within the last month
    // Graciously stolen from http://ejohn.org/files/pretty.js
    function time2str($ts)
    {
        if(!ctype_digit($ts))
            $ts = strtotime($ts);

        $diff = time() - $ts;
        if($diff == 0)
            return 'now';
        elseif($diff > 0)
        {
            $day_diff = floor($diff / 86400);
            if($day_diff == 0)
            {
                if($diff < 60) return 'just now';
                if($diff < 120) return '1 minute ago';
                if($diff < 3600) return floor($diff / 60) . ' minutes ago';
                if($diff < 7200) return '1 hour ago';
                if($diff < 86400) return floor($diff / 3600) . ' hours ago';
            }
            if($day_diff == 1) return 'Yesterday';
            if($day_diff < 7) return $day_diff . ' days ago';
            if($day_diff < 31) return ceil($day_diff / 7) . ' weeks ago';
            if($day_diff < 60) return 'last month';
            return date('F Y', $ts);
        }
        else
        {
            $diff = abs($diff);
            $day_diff = floor($diff / 86400);
            if($day_diff == 0)
            {
                if($diff < 120) return 'in a minute';
                if($diff < 3600) return 'in ' . floor($diff / 60) . ' minutes';
                if($diff < 7200) return 'in an hour';
                if($diff < 86400) return 'in ' . floor($diff / 3600) . ' hours';
            }
            if($day_diff == 1) return 'Tomorrow';
            if($day_diff < 4) return date('l', $ts);
            if($day_diff < 7 + (7 - date('w'))) return 'next week';
            if(ceil($day_diff / 7) < 4) return 'in ' . ceil($day_diff / 7) . ' weeks';
            if(date('n', $ts) == date('n') + 1) return 'next month';
            return date('F Y', $ts);
        }
    }

    // Returns an array representation of the given calendar month.
    // The array values are timestamps which allow you to easily format
    // and manipulate the dates as needed.
    function calendar($month = null, $year = null)
    {
        if(is_null($month)) $month = date('n');
        if(is_null($year)) $year = date('Y');

        $first = mktime(0, 0, 0, $month, 1, $year);
        $last = mktime(23, 59, 59, $month, date('t', $first), $year);

        $start = $first - (86400 * date('w', $first));
        $stop = $last + (86400 * (7 - date('w', $first)));

        $out = array();
        while($start < $stop)
        {
            $week = array();
            if($start > $last) break;
            for($i = 0; $i < 7; $i++)
            {
                $week[$i] = $start;
                $start += 86400;
            }
            $out[] = $week;
        }

        return $out;
    }

    // Processes mod_rewrite URLs into key => value pairs
    // See .htacess for more info.
    function pick_off($grab_first = false, $sep = '/')
    {
        $ret = array();
        $arr = explode($sep, trim($_SERVER['REQUEST_URI'], $sep));
        if($grab_first) $ret[0] = array_shift($arr);
        while(count($arr) > 0)
            $ret[array_shift($arr)] = array_shift($arr);
        return (count($ret) > 0) ? $ret : false;
    }

    // Creates a list of <option>s from the given database table.
    // table name, column to use as value, column(s) to use as text, default value(s) to select (can accept an array of values), extra sql to limit results
    function get_options($table, $val, $text, $default = null, $sql = '')
    {
        $db = Database::getDatabase(true);
        $out = '';

        $table = $db->escape($table);
        $rows = $db->getRows("SELECT * FROM `$table` $sql");
        foreach($rows as $row)
        {
            $the_text = '';
            if(!is_array($text)) $text = array($text); // Allows you to concat multiple fields for display
            foreach($text as $t)
                $the_text .= $row[$t] . ' ';
            $the_text = htmlspecialchars(trim($the_text));

            if(!is_null($default) && $row[$val] == $default)
                $out .= '<option value="' . htmlspecialchars($row[$val], ENT_QUOTES) . '" selected="selected">' . $the_text . '</option>';
            elseif(is_array($default) && in_array($row[$val],$default))
                $out .= '<option value="' . htmlspecialchars($row[$val], ENT_QUOTES) . '" selected="selected">' . $the_text . '</option>';
            else
                $out .= '<option value="' . htmlspecialchars($row[$val], ENT_QUOTES) . '">' . $the_text . '</option>';
        }
        return $out;
    }

    // More robust strict date checking for string representations
    function chkdate($str)
    {
        // Requires PHP 5.2
        if(function_exists('date_parse'))
        {
            $info = date_parse($str);
            if($info !== false && $info['error_count'] == 0)
            {
                if(checkdate($info['month'], $info['day'], $info['year']))
                    return true;
            }

            return false;
        }

        // Else, for PHP < 5.2
        return strtotime($str);
    }

    // Converts a date/timestamp into the specified format
    function dater($date = null, $format = null)
    {
        if(is_null($format))
            $format = 'Y-m-d H:i:s';

        if(is_null($date))
            $date = time();

        // if $date contains only numbers, treat it as a timestamp
        if(ctype_digit($date) === true)
            return date($format, $date);
        else
            return date($format, strtotime($date));
    }

    // Formats a phone number as (xxx) xxx-xxxx or xxx-xxxx depending on the length.
    function format_phone($phone)
    {
        $phone = preg_replace("/[^0-9]/", '', $phone);

        if(strlen($phone) == 7)
            return preg_replace("/([0-9]{3})([0-9]{4})/", "$1-$2", $phone);
        elseif(strlen($phone) == 10)
            return preg_replace("/([0-9]{3})([0-9]{3})([0-9]{4})/", "($1) $2-$3", $phone);
        else
            return $phone;
    }

    // Outputs hour, minute, am/pm dropdown boxes
    function hourmin($hid = 'hour', $mid = 'minute', $pid = 'ampm', $hval = null, $mval = null, $pval = null)
    {
        // Dumb hack to let you just pass in a timestamp instead
        if(func_num_args() == 1)
        {
            list($hval, $mval, $pval) = explode(' ', date('g i a', strtotime($hid)));
            $hid = 'hour';
            $mid = 'minute';
            $aid = 'ampm';
        }
        else
        {
            if(is_null($hval)) $hval = date('h');
            if(is_null($mval)) $mval = date('i');
            if(is_null($pval)) $pval = date('a');
        }

        $hours = array(12, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11);
        $out = "<select name='$hid' id='$hid'>";
        foreach($hours as $hour)
            if(intval($hval) == intval($hour)) $out .= "<option value='$hour' selected>$hour</option>";
            else $out .= "<option value='$hour'>$hour</option>";
        $out .= "</select>";

        $minutes = array('00', 15, 30, 45);
        $out .= "<select name='$mid' id='$mid'>";
        foreach($minutes as $minute)
            if(intval($mval) == intval($minute)) $out .= "<option value='$minute' selected>$minute</option>";
            else $out .= "<option value='$minute'>$minute</option>";
        $out .= "</select>";

        $out .= "<select name='$pid' id='$pid'>";
        $out .= "<option value='am'>am</option>";
        if($pval == 'pm') $out .= "<option value='pm' selected>pm</option>";
        else $out .= "<option value='pm'>pm</option>";
        $out .= "</select>";

        return $out;
    }

    // Returns the HTML for a month, day, and year dropdown boxes.
    // You can set the default date by passing in a timestamp OR a parseable date string.
    // $prefix_ will be appened to the name/id's of each dropdown, allowing for multiple calls in the same form.
    // $output_format lets you specify which dropdowns appear and in what order.
    function mdy($date = null, $prefix = null, $output_format = 'm d y')
    {
        if(is_null($date)) $date = time();
        if(!ctype_digit($date)) $date = strtotime($date);
        if(!is_null($prefix)) $prefix .= '_';
        list($yval, $mval, $dval) = explode(' ', date('Y n j', $date));

        $month_dd = "<select name='{$prefix}month' id='{$prefix}month'>";
        for($i = 1; $i <= 12; $i++)
        {
            $selected = ($mval == $i) ? ' selected="selected"' : '';
            $month_dd .= "<option value='$i'$selected>" . date('F', mktime(0, 0, 0, $i, 1, 2000)) . "</option>";
        }
        $month_dd .= "</select>";

        $day_dd = "<select name='{$prefix}day' id='{$prefix}day'>";
        for($i = 1; $i <= 31; $i++)
        {
            $selected = ($dval == $i) ? ' selected="selected"' : '';
            $day_dd .= "<option value='$i'$selected>$i</option>";
        }
        $day_dd .= "</select>";

        $year_dd = "<select name='{$prefix}year' id='{$prefix}year'>";
        for($i = date('Y'); $i < date('Y') + 10; $i++)
        {
            $selected = ($yval == $i) ? ' selected="selected"' : '';
            $year_dd .= "<option value='$i'$selected>$i</option>";
        }
        $year_dd .= "</select>";

        $trans = array('m' => $month_dd, 'd' => $day_dd, 'y' => $year_dd);
        return strtr($output_format, $trans);
    }

    // Redirects user to $url
    function redirect($url = null)
    {
        if(is_null($url)) $url = $_SERVER['PHP_SELF'];
        header("Location: $url");
        exit();
    }

    // Ensures $str ends with a single /
    function slash($str)
    {
        return rtrim($str, '/') . '/';
    }

    // Ensures $str DOES NOT end with a /
    function unslash($str)
    {
        return rtrim($str, '/');
    }

    // Returns an array of the values of the specified column from a multi-dimensional array
    function gimme($arr, $key = null, $mod = 1)
    {
        if(is_null($key))
            $key = current(array_keys($arr));

        $out = array();
		$i = 0;
        foreach($arr as $k => $a)
		{
			if($i % $mod == 0)
	            $out[] = $a[$key];
			$i++;
		}

        return $out;
    }

    // Fixes MAGIC_QUOTES
    function fix_slashes($arr = '')
    {
        if(is_null($arr) || $arr == '') return null;
        if(!get_magic_quotes_gpc()) return $arr;
        return is_array($arr) ? array_map('fix_slashes', $arr) : stripslashes($arr);
    }

    // Returns the first $num words of $str
    function max_words($str, $num, $suffix = '')
    {
        $words = explode(' ', $str);
        if(count($words) < $num)
            return $str;
        else
            return implode(' ', array_slice($words, 0, $num)) . $suffix;
    }

    // Serves an external document for download as an HTTP attachment.
    function download_document($filename, $mimetype = 'application/octet-stream')
    {
        if(!file_exists($filename) || !is_readable($filename)) return false;
        $base = basename($filename);
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Content-Disposition: attachment; filename=$base");
        header("Content-Length: " . filesize($filename));
        header("Content-Type: $mimetype");
        readfile($filename);
        exit();
    }

    // Retrieves the filesize of a remote file.
    function remote_filesize($url, $user = null, $pw = null)
    {
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_HEADER, 1);
        curl_setopt($ch, CURLOPT_NOBODY, 1);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        if(!is_null($user) && !is_null($pw))
        {
            $headers = array('Authorization: Basic ' .  base64_encode("$user:$pw"));
            curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        }

        $head = curl_exec($ch);
        curl_close($ch);

        preg_match('/Content-Length:\s([0-9].+?)\s/', $head, $matches);

        return isset($matches[1]) ? $matches[1] : false;
    }

    // Outputs a filesize in human readable format.
    function bytes2str($val, $round = 0)
    {
        $unit = array('','K','M','G','T','P','E','Z','Y');
        while($val >= 1000)
        {
            $val /= 1024;
            array_shift($unit);
        }
        return round($val, $round) . array_shift($unit) . 'B';
    }

    // Tests for a valid email address and optionally tests for valid MX records, too.
    function valid_email($email, $test_mx = false)
    {
        if(preg_match("/^([_a-z0-9+-]+)(\.[_a-z0-9-]+)*@([a-z0-9-]+)(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/i", $email))
        {
            if($test_mx)
            {
                list( , $domain) = explode("@", $email);
                return getmxrr($domain, $mxrecords);
            }
            else
                return true;
        }
        else
            return false;
    }

    // Grabs the contents of a remote URL. Can perform basic authentication if un/pw are provided.
    function geturl($url, $username = null, $password = null)
    {
        if(function_exists('curl_init'))
        {
            $ch = curl_init();
            if(!is_null($username) && !is_null($password))
                curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Basic ' .  base64_encode("$username:$password")));
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
            $html = curl_exec($ch);
            curl_close($ch);
            return $html;
        }
        elseif(ini_get('allow_url_fopen') == true)
        {
            if(!is_null($username) && !is_null($password))
                $url = str_replace("://", "://$username:$password@", $url);
            $html = file_get_contents($url);
            return $html;
        }
        else
        {
            // Cannot open url. Either install curl-php or set allow_url_fopen = true in php.ini
            return false;
        }
    }

    // Returns the user's browser info.
    // browscap.ini must be available for this to work.
    // See the PHP manual for more details.
    function browser_info()
    {
        $info    = get_browser(null, true);
        $browser = $info['browser'] . ' ' . $info['version'];
        $os      = $info['platform'];
        $ip      = $_SERVER['REMOTE_ADDR'];
        return array('ip' => $ip, 'browser' => $browser, 'os' => $os);
    }

    // Quick wrapper for preg_match
    function match($regex, $str, $i = 0)
    {
        if(preg_match($regex, $str, $match) == 1)
            return $match[$i];
        else
            return false;
    }

    // Sends an HTML formatted email
    function send_html_mail($to, $subject, $msg, $from, $plaintext = '')
    {
        if(!is_array($to)) $to = array($to);

        foreach($to as $address)
        {
            $boundary = uniqid(rand(), true);

            $headers  = "From: $from\n";
            $headers .= "MIME-Version: 1.0\n";
            $headers .= "Content-Type: multipart/alternative; boundary = $boundary\n";
            $headers .= "This is a MIME encoded message.\n\n";
            $headers .= "--$boundary\n" .
                        "Content-Type: text/plain; charset=ISO-8859-1\n" .
                        "Content-Transfer-Encoding: base64\n\n";
            $headers .= chunk_split(base64_encode($plaintext));
            $headers .= "--$boundary\n" .
                        "Content-Type: text/html; charset=ISO-8859-1\n" .
                        "Content-Transfer-Encoding: base64\n\n";
            $headers .= chunk_split(base64_encode($msg));
            $headers .= "--$boundary--\n" .

            mail($address, $subject, '', $headers);
        }
    }

    // Returns the lat, long of an address via Yahoo!'s geocoding service.
    // You'll need an App ID, which is available from here:
    // http://developer.yahoo.com/maps/rest/V1/geocode.html
    function geocode($location, $appid)
    {
        $location = urlencode($location);
        $appid    = urlencode($appid);
        $data     = file_get_contents("http://local.yahooapis.com/MapsService/V1/geocode?output=php&appid=$appid&location=$location");
        $data     = unserialize($data);

        if($data === false) return false;

        $data = $data['ResultSet']['Result'];

        return array('lat' => $data['Latitude'], 'lng' => $data['Longitude']);
    }

    // Quick and dirty wrapper for curl scraping.
    function curl($url, $referer = null, $post = null)
    {
        static $tmpfile;

        if(!isset($tmpfile) || ($tmpfile == '')) $tmpfile = tempnam('/tmp', 'FOO');

        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_COOKIEFILE, $tmpfile);
        curl_setopt($ch, CURLOPT_COOKIEJAR, $tmpfile);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1) Gecko/20061024 BonEcho/2.0");
        // curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        // curl_setopt($ch, CURLOPT_VERBOSE, 1);

        if($referer) curl_setopt($ch, CURLOPT_REFERER, $referer);
        if(!is_null($post))
        {
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
        }

        $html = curl_exec($ch);

        // $last_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
        return $html;
    }

    // Accepts any number of arguments and returns the first non-empty one
    function pick()
    {
        foreach(func_get_args() as $arg)
            if(!empty($arg))
                return $arg;
        return '';
    }

    // Secure a PHP script using basic HTTP authentication
    function http_auth($un, $pw, $realm = "Secured Area")
    {
        if(!(isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW']) && $_SERVER['PHP_AUTH_USER'] == $un && $_SERVER['PHP_AUTH_PW'] == $pw))
        {
            header('WWW-Authenticate: Basic realm="' . $realm . '"');
            header('Status: 401 Unauthorized');
            exit();
        }
    }

    // This is easier than typing 'echo WEB_ROOT'
    function WEBROOT()
    {
        echo WEB_ROOT;
    }

    // Class Autloader
    function __autoload($class_name)
    {
        require DOC_ROOT . '/includes/class.' . strtolower($class_name) . '.php';
    }

    // Returns a file's mimetype based on its extension
    function mime_type($filename, $default = 'application/octet-stream')
    {
        $mime_types = array('323'     => 'text/h323',
                            'acx'     => 'application/internet-property-stream',
                            'ai'      => 'application/postscript',
                            'aif'     => 'audio/x-aiff',
                            'aifc'    => 'audio/x-aiff',
                            'aiff'    => 'audio/x-aiff',
                            'asf'     => 'video/x-ms-asf',
                            'asr'     => 'video/x-ms-asf',
                            'asx'     => 'video/x-ms-asf',
                            'au'      => 'audio/basic',
                            'avi'     => 'video/x-msvideo',
                            'axs'     => 'application/olescript',
                            'bas'     => 'text/plain',
                            'bcpio'   => 'application/x-bcpio',
                            'bin'     => 'application/octet-stream',
                            'bmp'     => 'image/bmp',
                            'c'       => 'text/plain',
                            'cat'     => 'application/vnd.ms-pkiseccat',
                            'cdf'     => 'application/x-cdf',
                            'cer'     => 'application/x-x509-ca-cert',
                            'class'   => 'application/octet-stream',
                            'clp'     => 'application/x-msclip',
                            'cmx'     => 'image/x-cmx',
                            'cod'     => 'image/cis-cod',
                            'cpio'    => 'application/x-cpio',
                            'crd'     => 'application/x-mscardfile',
                            'crl'     => 'application/pkix-crl',
                            'crt'     => 'application/x-x509-ca-cert',
                            'csh'     => 'application/x-csh',
                            'css'     => 'text/css',
                            'dcr'     => 'application/x-director',
                            'der'     => 'application/x-x509-ca-cert',
                            'dir'     => 'application/x-director',
                            'dll'     => 'application/x-msdownload',
                            'dms'     => 'application/octet-stream',
                            'doc'     => 'application/msword',
                            'dot'     => 'application/msword',
                            'dvi'     => 'application/x-dvi',
                            'dxr'     => 'application/x-director',
                            'eps'     => 'application/postscript',
                            'etx'     => 'text/x-setext',
                            'evy'     => 'application/envoy',
                            'exe'     => 'application/octet-stream',
                            'fif'     => 'application/fractals',
                            'flac'    => 'audio/flac',
                            'flr'     => 'x-world/x-vrml',
                            'gif'     => 'image/gif',
                            'gtar'    => 'application/x-gtar',
                            'gz'      => 'application/x-gzip',
                            'h'       => 'text/plain',
                            'hdf'     => 'application/x-hdf',
                            'hlp'     => 'application/winhlp',
                            'hqx'     => 'application/mac-binhex40',
                            'hta'     => 'application/hta',
                            'htc'     => 'text/x-component',
                            'htm'     => 'text/html',
                            'html'    => 'text/html',
                            'htt'     => 'text/webviewhtml',
                            'ico'     => 'image/x-icon',
                            'ief'     => 'image/ief',
                            'iii'     => 'application/x-iphone',
                            'ins'     => 'application/x-internet-signup',
                            'isp'     => 'application/x-internet-signup',
                            'jfif'    => 'image/pipeg',
                            'jpe'     => 'image/jpeg',
                            'jpeg'    => 'image/jpeg',
                            'jpg'     => 'image/jpeg',
                            'js'      => 'application/x-javascript',
                            'latex'   => 'application/x-latex',
                            'lha'     => 'application/octet-stream',
                            'lsf'     => 'video/x-la-asf',
                            'lsx'     => 'video/x-la-asf',
                            'lzh'     => 'application/octet-stream',
                            'm13'     => 'application/x-msmediaview',
                            'm14'     => 'application/x-msmediaview',
                            'm3u'     => 'audio/x-mpegurl',
                            'man'     => 'application/x-troff-man',
                            'mdb'     => 'application/x-msaccess',
                            'me'      => 'application/x-troff-me',
                            'mht'     => 'message/rfc822',
                            'mhtml'   => 'message/rfc822',
                            'mid'     => 'audio/mid',
                            'mny'     => 'application/x-msmoney',
                            'mov'     => 'video/quicktime',
                            'movie'   => 'video/x-sgi-movie',
                            'mp2'     => 'video/mpeg',
                            'mp3'     => 'audio/mpeg',
                            'mpa'     => 'video/mpeg',
                            'mpe'     => 'video/mpeg',
                            'mpeg'    => 'video/mpeg',
                            'mpg'     => 'video/mpeg',
                            'mpp'     => 'application/vnd.ms-project',
                            'mpv2'    => 'video/mpeg',
                            'ms'      => 'application/x-troff-ms',
                            'mvb'     => 'application/x-msmediaview',
                            'nws'     => 'message/rfc822',
                            'oda'     => 'application/oda',
                            'oga'     => 'audio/ogg',
                            'ogg'     => 'audio/ogg',
                            'ogv'     => 'video/ogg',
                            'ogx'     => 'application/ogg',
                            'p10'     => 'application/pkcs10',
                            'p12'     => 'application/x-pkcs12',
                            'p7b'     => 'application/x-pkcs7-certificates',
                            'p7c'     => 'application/x-pkcs7-mime',
                            'p7m'     => 'application/x-pkcs7-mime',
                            'p7r'     => 'application/x-pkcs7-certreqresp',
                            'p7s'     => 'application/x-pkcs7-signature',
                            'pbm'     => 'image/x-portable-bitmap',
                            'pdf'     => 'application/pdf',
                            'pfx'     => 'application/x-pkcs12',
                            'pgm'     => 'image/x-portable-graymap',
                            'pko'     => 'application/ynd.ms-pkipko',
                            'pma'     => 'application/x-perfmon',
                            'pmc'     => 'application/x-perfmon',
                            'pml'     => 'application/x-perfmon',
                            'pmr'     => 'application/x-perfmon',
                            'pmw'     => 'application/x-perfmon',
                            'pnm'     => 'image/x-portable-anymap',
                            'pot'     => 'application/vnd.ms-powerpoint',
                            'ppm'     => 'image/x-portable-pixmap',
                            'pps'     => 'application/vnd.ms-powerpoint',
                            'ppt'     => 'application/vnd.ms-powerpoint',
                            'prf'     => 'application/pics-rules',
                            'ps'      => 'application/postscript',
                            'pub'     => 'application/x-mspublisher',
                            'qt'      => 'video/quicktime',
                            'ra'      => 'audio/x-pn-realaudio',
                            'ram'     => 'audio/x-pn-realaudio',
                            'ras'     => 'image/x-cmu-raster',
                            'rgb'     => 'image/x-rgb',
                            'rmi'     => 'audio/mid',
                            'roff'    => 'application/x-troff',
                            'rtf'     => 'application/rtf',
                            'rtx'     => 'text/richtext',
                            'scd'     => 'application/x-msschedule',
                            'sct'     => 'text/scriptlet',
                            'setpay'  => 'application/set-payment-initiation',
                            'setreg'  => 'application/set-registration-initiation',
                            'sh'      => 'application/x-sh',
                            'shar'    => 'application/x-shar',
                            'sit'     => 'application/x-stuffit',
                            'snd'     => 'audio/basic',
                            'spc'     => 'application/x-pkcs7-certificates',
                            'spl'     => 'application/futuresplash',
                            'src'     => 'application/x-wais-source',
                            'sst'     => 'application/vnd.ms-pkicertstore',
                            'stl'     => 'application/vnd.ms-pkistl',
                            'stm'     => 'text/html',
                            'svg'     => "image/svg+xml",
                            'sv4cpio' => 'application/x-sv4cpio',
                            'sv4crc'  => 'application/x-sv4crc',
                            't'       => 'application/x-troff',
                            'tar'     => 'application/x-tar',
                            'tcl'     => 'application/x-tcl',
                            'tex'     => 'application/x-tex',
                            'texi'    => 'application/x-texinfo',
                            'texinfo' => 'application/x-texinfo',
                            'tgz'     => 'application/x-compressed',
                            'tif'     => 'image/tiff',
                            'tiff'    => 'image/tiff',
                            'tr'      => 'application/x-troff',
                            'trm'     => 'application/x-msterminal',
                            'tsv'     => 'text/tab-separated-values',
                            'txt'     => 'text/plain',
                            'uls'     => 'text/iuls',
                            'ustar'   => 'application/x-ustar',
                            'vcf'     => 'text/x-vcard',
                            'vrml'    => 'x-world/x-vrml',
                            'wav'     => 'audio/x-wav',
                            'wcm'     => 'application/vnd.ms-works',
                            'wdb'     => 'application/vnd.ms-works',
                            'wks'     => 'application/vnd.ms-works',
                            'wmf'     => 'application/x-msmetafile',
                            'wps'     => 'application/vnd.ms-works',
                            'wri'     => 'application/x-mswrite',
                            'wrl'     => 'x-world/x-vrml',
                            'wrz'     => 'x-world/x-vrml',
                            'xaf'     => 'x-world/x-vrml',
                            'xbm'     => 'image/x-xbitmap',
                            'xla'     => 'application/vnd.ms-excel',
                            'xlc'     => 'application/vnd.ms-excel',
                            'xlm'     => 'application/vnd.ms-excel',
                            'xls'     => 'application/vnd.ms-excel',
                            'xlt'     => 'application/vnd.ms-excel',
                            'xlw'     => 'application/vnd.ms-excel',
                            'xof'     => 'x-world/x-vrml',
                            'xpm'     => 'image/x-xpixmap',
                            'xwd'     => 'image/x-xwindowdump',
                            'z'       => 'application/x-compress',
                            'zip'     => 'application/zip');
        $ext = pathinfo($filename, PATHINFO_EXTENSION);
        return isset($mime_types[$ext]) ? $mime_types[$ext] : $default;
    }