util.inc.php

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<?php
class Util
{
    public static function redirect($url)
    {
        header("Location: $url");
        exit;
    }

    public static function dump($data)
    {
        echo "<pre class=\"vardump\">";
        var_dump($data);
        echo "</pre>";
    }

    public static function setUrlParam($url, $name, $value)
    {
        //does it already have any stuff?
        if ($pos = strpos($url, '?'))
        {
            $vars = substr($url, $pos+1);
            $url = substr($url, 0, $pos);
        }

        //get our params...
        $getAr = array();
        $paramAr = explode('&', $vars);
        foreach ($paramAr AS $param)
        {
            if ($param)
            {
                $vars = explode('=', $param);
                $getAr[$vars[0]] = $vars[1];
            }
        }

        //set our new one...
        $getAr[$name] = urlencode($value);
        
        //now format that url....
        $count = 0;
        $url .= "?";
        foreach ($getAr AS $key => $val)
        {
            if ($count)
                $url .= '&';
                
            $url .= "$key=$val";
        
            $count++;
        }

        return $url;
    }

    public static function isValidEmail($email)
    {
        $regexp = "/^[a-z0-9]+([_\\.-][a-z0-9]+)*@([a-z0-9]+([\.-][a-z0-9]+)*)+\\.[a-z]{2,}$/i";
        return preg_match($regexp, $email);
    }


    public static function ieDrawClear()
    {
        echo "\t<div id=\"clear\"><!-- if you use IE, shame on you! --></div>\n";
    }

    public static function spawnHttpAsync($page)
    {
        $cbSock = fsockopen(Config::get('site_hostname'), 80, $errno, $errstr, 5);
        if ($cbSock)
        {
            $cmd  = "GET {$page} HTTP/1.0\r\n";
            $cmd .= "Host: " . Config::get('site_hostname') . "\r\n\r\n";
            fwrite($cbSock, $cmd);
        }
    }

    public static function getUrlContents($link)
    {
        $ch = curl_init();
        $timeout = 5; 
        curl_setopt ($ch, CURLOPT_URL, $link);
        curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        $file_contents = curl_exec($ch);
        curl_close($ch);

        return $file_contents;
    }

    public static function getBlurb($text, $length = 255, &$truncated = null)
    {
        //clean it up.
        $text = strip_tags(trim($text));

        //if its shorter or exactly ourlength... use it.
        if (strlen($text) <= $length)
        {
            $blurb = $text;
            $truncated = false;
        }
        //nope, we might truncate
        else
        {
            //search for first space.
            $pos = strpos($text, " ", $length);
            
            //if it didnt get found... it is the thing.
            if ($pos === false)
            {
                $blurb = $text;
                $truncated = false;
            }
            else
            {
                $blurb = substr($text, 0, $pos);
                $truncated = true;
            }
        }

        //send it back formatted.
        return Linkify::bbcode($blurb);
    }

    public static function getNumberSuffix($n)
    {
        $l = substr($n, -1);
        $m = substr($n, -2);
        
        if ($m == '11')
            return $n . "th";
        if ($m == '12')
            return $n . "th";
        if ($m == '13')
            return $n . "th";
        if ($l == 1)
            return $n . "st";
        if ($l == 2)
            return $n . "nd";
        if ($l == 3)
            return $n . "rd";
        else
            return $n . "th";
    }

    public static function formatPhoneNumber($number)
    {
        //remove non number characters
        $number = preg_replace("/[^0-9]/", "", $number);

        if (preg_match("/([0-9]{3})([0-9]{3})([0-9]{4})/", $number, $matches))
            return "$matches[1].$matches[2].$matches[3]";
        
        return $number;
    }

    public static function shellExec($call)
    {
        return system($call);
    }

    public static function noCache()
    {
        // Date in the past
        header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
        
        // Always modified
        header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
        
        // HTTP/1.1
        header("Cache-Control: no-store, no-cache, must-revalidate");
        header("Cache-Control: pre-check=0, post-check=0", false);
        
        // HTTP/1.0
        header("Pragma: no-cache");
    }

    public static function pluralize($str, $amount = null, $num = false)
    {
        if ($num)
        {
            if ($amount)
            {
                if ($num === -1)
                {
                    $whole = (int)$amount;
                    $prefix = $whole ? $whole . " " : "";

                    $frac = $amount - $whole;
                    if ($frac)
                    {
                        if ($frac == 0.25)
                            $prefix .= "&frac14; ";
                        else if ($frac == 0.50)
                            $prefix .= "&frac12; ";
                        else if ($frac == 0.75)
                            $prefix .= "&frac34; ";
                        else
                            $prefix = "$amount ";
                    }
                }
                else
                    $prefix = "$amount ";
            }
            else
                $prefix = "0 ";
        }
        else
            $prefix = "";

        if ($amount !== null && abs($amount) == 1)
            return $prefix . $str;

        // Simple pluralization rules.  Add more rules or exceptions as needed.

        if (substr($str, -1) == "s")
            return $prefix . $str . "es";
        if (substr($str, -1) == "y" && $str != 'day')
            return $prefix . substr($str, 0, -1) . "ies";
        if (substr($str, -1) == "f")
            return $prefix . substr($str, 0, -1) . "ves";

        return $prefix . $str . "s";
    }
}
?>

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