gistfile1.php

<?php

	class Tools
	{
		const DEFAULT_DATE_FORMAT = DATE_ATOM;

		public static function Coalesce(&$value, $ifnull=null)
		{
			if(empty($value))
			{
				return $ifnull;
			}
			return $value;
		}

		public static function parseTimestamp($timestamp)
		{
			$new_date = date(Tools::DEFAULT_DATE_FORMAT, $timestamp);
			if(!$new_date)
				return null;

			return $new_date;
		}

		public static function parseDate($date)
		{
			$parsed = strtotime($date);
			if($parsed != -1)
			{
				$new_date = date(Tools::DEFAULT_DATE_FORMAT, $parsed);
				return $new_date;
			}

			throw new Exception('Could not parse date.');
		}

		public static function GetPageURL($page, $action, array $query_string = array())
		{
			$_page_url = sprintf('%s/%s/%s?%s', 
				Tools::GetBaseURL(),
				$page, 
				$action,
				http_build_query($query_string)
			);

			return $_page_url;
		}

		public static function GetBaseURL()
		{
			$protocol = stripos('https', $_SERVER['SERVER_PROTOCOL']) !== false ? 'https://' : 'http://';
			$host = $_SERVER['HTTP_HOST'];
			$uri = str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']);
			
			return $protocol . $host . $uri ;
		}

		public static function GetCurrentURL($with_protocol = true)
		{
			$protocol = stripos('https', $_SERVER['SERVER_PROTOCOL']) !== false ? 'https://' : 'http://';
			$host = $_SERVER['HTTP_HOST'];
			
			$uri = str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']);
			
			return sprintf("%s%s%s", 
				$with_protocol ? $protocol : '',
				$host,
				$uri
			);
		}

		public static function BuildQueryString(array $query)
		{
			return http_build_query($query);
		}

		public static function GetClassName($object)
		{
			$_class_name = get_class($object);
			if(strpos($_class_name, '\\') !== false)
			{
				$_class_name = substr($_class_name, strrpos($_class_name, '\\')+1);
			}

			return $_class_name;
		}

		public static function FetchURL($url, array $post_data = array())
		{
			$ch = curl_init($url);
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
			curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
			curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; AOL 7.0; Windows NT 5.1; SV1; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 1.1.4322; .NET CLR 2.0.50727)');
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
			curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); 

			if(count($post_data) > 0)
			{
				curl_setopt($ch, CURLOPT_POST, true);
				curl_setopt($ch, CURLOPT_POSTFIELDS, self::BuildQueryString($post_data));
			}

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

			return $result;
		}

		public static function getDataPool($data, $max_entries)
		{
			$len = count($data);
			$results = array();

			if($len >= $max_entries)
			{
				$pool = array();
				$pools = (int) ceil( $len / $max_entries );

				for($i = 0; $i < $pools; $i++)
				{
					$min = $max_entries * $i;
					$pool = array_slice($data, $min, $max_entries);

					if(count($pool) > 0)
					{
						$results[] = $pool;
					}
				}
			}
			else if($len > 0)
			{
				$results[] = array($data);
			}

			return $results;
		}	
	}