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Routing class for tinyMvc

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  1. <?php 
  2. class Router {
  3. 	function get() 
  4. 	{
  5. 		//APP_BASE_URL is a constant i set for the framwork. It is the full url to the
  6. 		//root folder of the framework
  7. 		$my_url = $this->str_replace_once(APP_BASE_URL, '', $this->getfullurl());
  8.  
  9. 		//This removes the query string part of the url so that it can be evaluated
  10. 		if($_SERVER["QUERY_STRING"]) {
  11. 			$my_url = $this->str_replace_once("?" . $_SERVER["QUERY_STRING"], '', $my_url);
  12. 		}
  13. 		$my_url = $this->trimTrailingSlashes($my_url);
  14. 		$requestURI = explode('/', $my_url);
  15. 		$function = $requestURI[0];
  16. 		$parameters_str = '';
  17. 		for($i = 1; $i < count($requestURI); $i++){
  18. 			$parameters_str .= $requestURI[$i];
  19. 			if($i != count($requestURI)-1) {
  20. 				$parameters_str .= ', ';
  21. 			}
  22. 		}
  23.  
  24. 		//The function returns a PHP command as a string so that i can be used in eval()
  25. 		if($function){
  26. 			return '$this->'.$function.'('.$parameters_str.');';
  27. 		} else {
  28. 			return '$this->index();';
  29. 		}
  30. 	}
  31.  
  32.  
  33. 	//THESE FOLLOWING FUNCTIONS ARE JUST HELPERS
  34.  
  35. 	function str_replace_once($str_pattern, $str_replacement = '', $string){
  36. 		if (strpos($string, $str_pattern) !== false){
  37. 			$occurrence = strpos($string, $str_pattern);
  38. 			return substr_replace($string, $str_replacement, strpos($string, $str_pattern), strlen($str_pattern));
  39. 		}
  40. 		return $string;
  41. 	}
  42.  
  43. 	function trimTrailingSlashes($str){
  44. 		$str = trim($str);
  45. 		return $str == '/' ? $str : rtrim($str, '/');
  46. 	}
  47.  
  48. 	function getfullurl(){
  49. 		$s = empty($_SERVER["HTTPS"]) ? '' : ($_SERVER["HTTPS"] == "on") ? "s" : "";
  50. 		$protocol = substr(strtolower($_SERVER["SERVER_PROTOCOL"]), 0, strpos(strtolower($_SERVER["SERVER_PROTOCOL"]), "/")) . $s;
  51. 		$port = ($_SERVER["SERVER_PORT"] == "80") ? "" : (":".$_SERVER["SERVER_PORT"]);
  52. 		return $protocol . "://" . $_SERVER['SERVER_NAME'] . $port . $_SERVER['REQUEST_URI'];
  53. 	}
  54. }

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