PHP MVC "route not found" - php

Question

i am using php mvc and when i try to edit a specific row, it says, "no route matched" but the route is well defined.
Here is the route for match
$router->add('{controller}/{id:\d+}/{action}');
and here is Router.php.
<?php
namespace Core;
/**
*Router
*/
class Router
{
protected $routes = [];
//saves the parameter from the matched route
protected $params = [];
/**
*Below, params=[] indicates that the paramentes in the url can be empty
*/
public function add($route, $params = [])
{
// Convert the route to a regular expression: escape forward slashes
$route = preg_replace('/\//', '\\/', $route);
// Convert variables e.g. {controller}
$route = preg_replace('/\{([a-z]+)\}/', '(?P<\1>[a-z-]+)', $route);
// Convert variables with custom regular expressions e.g. {id:\d+}
$route = preg_replace('/\{([a-z]+):([^\}]+)\}/', '(?P<\1>\2)', $route);
// Add start and end delimiters, and case insensitive flag
$route = '/^' . $route . '$/i';
$this->routes[$route] = $params;
}
/**
*matches the route and sets the parameters
* $url: The route URL
* returns true is match is found else flase
*/
public function match($url)
{
//Matches to the fixed URL format /controller/action
//$reg_exp = "/^(?P<controller>[a-z-]+)\/(?P<action>[a-z-]+)$/";
foreach ($this->routes as $route => $params) {
if (preg_match($route, $url, $matches))
{
//get named capture group values
//$params = [];
foreach ($matches as $key => $match) {
if (is_string($key))
{
$params[$key] = $match;
}
}
$this->params = $params;
return true;
}
}
return false;
}
// foreach ($this->routes as $route => $params) {
// if ($url == $route) {
// $this->params = $params;
// return true;
// }
// }
// return false;
// if (preg_match($reg_exp, $url, $matches))
// {
//
//
// }
//gets the currently matched parameters
public function getParams()
{
return $this->params;
}
public function dispatch($url)
{
$url = $this->removeQueryStringVariables($url);
if($this->match($url)){
$controller = $this->params['controller'];
$controller = $this->convertToStudlyCaps($controller); //Text can easily be converted from uppercase or lowercase to sTudLYcAPs
//$controller = "App\Controllers\\$controller";
$controller = $this->getNameSpace() . $controller;
if (class_exists($controller)){
$controller_object = new $controller($this->params);
$action = $this->params['action'];
$action = $this->convertToCamelCase($action);
if (is_callable([$controller_object, $action]))
{
$controller_object->$action();
}else{
throw new \Exception("Method $action (in controller $controller) not found");
}
}else{
throw new \Exception("Controller class $controller not found");
}
}else {
throw new \Exception("No route matched");
}
}
/**
*Convert the string with hypens to StudlyCaps,
*e.g. post-authors => PostAuthors
*/
protected function convertToStudlyCaps($string)
{
return str_replace(' ', '', ucwords(str_replace('-', ' ', $string)));
}
/**
*Convert the string with hypens to camelCase,
*e.g. add-new => addNew
*/
protected function convertToCamelCase($string)
{
return lcfirst($this->convertToStudlyCaps($string));
}
/**
*This removes query string variable i.e. posts/index&page=1 => posts/index
*
*/
protected function removeQueryStringVariables($url)
{
if($url != '')
{
$parts = explode('&', $url, 2);
if(strpos($parts[0], '=') === false){
$url = $parts[0];
}
else{
$url = '';
}
}
return $url;
}
/*
*Get the namespace for the controller class. The namespace defined in the
*route parameters is added if present.
*/
protected function getNameSpace()
{
$namespace = 'App\Controllers\\';
if(array_key_exists('namespace', $this->params))
{
$namespace .= $this->params['namespace'] . '\\';
}
return $namespace;
}
}
?>
P.S. i can add values to database but cannot edit it, as it says route not matched. if it helps,here is index.php:
<?php
/**
* FIRST CONTROLLER
*
*/
/**
*Twig
*/
require_once dirname(__DIR__) . '/vendor/Twig/lib/Twig/autoload.php';
Twig_Autoloader::register();
/**
*AutoLoader
*
*/
spl_autoload_register(function ($class){
$root = dirname(__DIR__); //gets the parent directory
$file = $root . '/' . str_replace('\\', '/', $class) . '.php';
if (is_readable($file))
{
require $root . '/' . str_replace('\\', '/', $class) . '.php';
}
});
/**
*Error and Exception handling
*
*/
error_reporting(E_ALL);
set_error_handler('Core\Error::errorHandler');
set_exception_handler('Core\Error::exceptionHandler');
/**
*Routing
*
*/
//require '../Core/Router.php';
$router = new Core\Router();
//Routes
$router->add('', ['controller' => 'Home', 'action' => 'index']);
$router->add('{controller}/{action}');
$router->add('admin/{controller}/{action}', ['namespace' => 'Admin']);
$router->add('{controller}/{id:\d+}/{action}');
$router ->dispatch($_SERVER['QUERY_STRING']);
/*
// Display the routing table
echo '<pre>';
//var_dump($router->getRoutes());
echo htmlspecialchars(print_r($router->getRoutes(),true));
echo '<pre>';
//Match the requested route
$url = $_SERVER['QUERY_STRING'];
if ($router->match($url)) {
echo '<pre>';
var_dump($router->getParams());
echo '<pre>';
}else{
echo "No Route Found For URL '$url'";
}
*/
?>