| Total Complexity | 45 |
| Total Lines | 255 |
| Duplicated Lines | 0 % |
| Changes | 4 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Router often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Router, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 7 | class Router{ |
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| 8 | use Helper, CheckTrait; |
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| 9 | |||
| 10 | private static $instance = null; |
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| 11 | private array $routers = []; |
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| 12 | private ?string $prefix = null; |
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| 13 | private $protocol = null; |
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| 14 | private $filtersSet = null; |
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| 15 | private $filter = null; |
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| 16 | private $group = false; |
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| 17 | private $lastReturn = null; |
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| 18 | |||
| 19 | public function __construct() |
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| 20 | { |
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| 21 | return $this; |
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| 22 | } |
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| 23 | |||
| 24 | public static function create(): Router |
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| 25 | { |
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| 26 | self::getInstance()->check_config(); |
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| 27 | self::getInstance()->import(ROUTER_CONFIG['path']); |
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| 28 | return self::getInstance(); |
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| 29 | } |
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| 30 | |||
| 31 | public static function getInstance(): Router |
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| 32 | { |
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| 33 | self::$instance = (is_null(self::$instance)) ? new self() : self::$instance; |
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| 34 | return self::$instance; |
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| 35 | } |
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| 36 | |||
| 37 | public static function form(string $uri, string $controll): Router |
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| 38 | { |
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| 39 | return self::getInstance()->add($uri, $controll, 'form'); |
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| 40 | } |
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| 41 | |||
| 42 | public static function get(string $uri, string $controll): Router |
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| 43 | { |
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| 44 | return self::getInstance()->add($uri, $controll, 'get'); |
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| 45 | } |
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| 46 | |||
| 47 | public static function post(string $uri, string $controll): Router |
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| 48 | { |
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| 49 | return self::getInstance()->add($uri, $controll, 'post'); |
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| 50 | } |
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| 51 | |||
| 52 | public static function ajax(string $uri, string $controll): Router |
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| 53 | { |
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| 54 | return self::getInstance()->add($uri, $controll, 'ajax'); |
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| 55 | } |
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| 56 | |||
| 57 | public static function add(string $uri, string $controll, string $protocol): Router |
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| 58 | { |
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| 59 | return self::getInstance()->set($uri, $controll, $protocol); |
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| 60 | } |
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| 61 | |||
| 62 | public function set($url , $role , $protocol = null): Router |
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| 63 | { |
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| 64 | $url = (substr($url,0,1) !=='/' and strlen($url) > 0) ? "/{$url}" : $url; |
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| 65 | |||
| 66 | foreach($this->routers as $key => $value){ |
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| 67 | if( md5($this->prefix . $value['url'] . $value['protocol'] ) === md5( $url . $protocol ) ){ |
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| 68 | throw new Exception("There is already a route with the url {$url} and with the {$protocol} protocol configured."); |
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| 69 | } |
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| 70 | } |
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| 71 | |||
| 72 | $route = [ |
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| 73 | 'url' => $this->prefix.$url, |
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| 74 | 'role' => $role, |
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| 75 | 'protocol' => $protocol, |
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| 76 | 'filters' => null, |
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| 77 | 'group' => self::getInstance()->group |
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| 78 | ]; |
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| 79 | |||
| 80 | $this->routers[] = $route; |
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| 81 | |||
| 82 | return self::getInstance(); |
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| 83 | } |
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| 84 | |||
| 85 | public static function group(string $prefix,$callback): Router |
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| 86 | { |
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| 87 | self::getInstance()->prefix = (substr($prefix,0,1) !== '/') ? "/{$prefix}" : $prefix; |
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| 88 | self::getInstance()->group = sha1(date('d/m/Y h:m:i')); |
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| 89 | $callback(); |
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| 90 | self::getInstance()->group = null; |
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| 91 | self::getInstance()->prefix = null; |
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| 92 | self::getInstance()->lastReturn = true; |
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| 93 | return self::getInstance(); |
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| 94 | } |
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| 95 | |||
| 96 | public static function name(string $name): Router |
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| 97 | { |
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| 98 | |||
| 99 | if(self::getInstance()->lastReturn){ |
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| 100 | throw new Exception("There is no reason to call a {$name} route group."); |
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| 101 | } |
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| 102 | |||
| 103 | $currentRoute = end(self::getInstance()->routers); |
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| 104 | |||
| 105 | foreach(self::getInstance()->routers as $key => $value){ |
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| 106 | if(array_key_exists($name, self::getInstance()->routers)){ |
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| 107 | throw new Exception("There is already a route with the name {$name} configured."); |
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| 108 | } |
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| 109 | } |
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| 110 | |||
| 111 | $currentRoute['name'] = $name; |
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| 112 | |||
| 113 | self::getInstance()->routers[count(self::getInstance()->routers)-1] = $currentRoute; |
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| 114 | |||
| 115 | self::getInstance()->lastReturn = null; |
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| 116 | |||
| 117 | return self::getInstance(); |
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| 118 | } |
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| 119 | |||
| 120 | private function byName(string $route_name) |
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| 121 | { |
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| 122 | $currentProtocol = $this->getProtocol(); |
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| 123 | |||
| 124 | $this->check_name($route_name); |
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| 125 | |||
| 126 | $route = $this->routers[$route_name]; |
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| 127 | |||
| 128 | $this->check_protocol($route['protocol'], $currentProtocol); |
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| 129 | |||
| 130 | $this->check_filtering($route); |
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| 131 | |||
| 132 | $this->Controller($route['role']); |
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| 133 | return true; |
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| 134 | } |
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| 135 | |||
| 136 | public function dispatch(?string $route_name = null): bool |
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| 137 | { |
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| 138 | if(!is_null($route_name)){ |
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| 139 | return $this->byName($route_name); |
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| 140 | } |
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| 141 | |||
| 142 | $currentProtocol = $this->getProtocol(); |
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| 143 | |||
| 144 | foreach(array_reverse($this->routers) as $r => $route){ |
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| 145 | |||
| 146 | $this->hasProtocol($route, $currentProtocol); |
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| 147 | |||
| 148 | $route_loop = explode( |
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| 149 | '/', |
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| 150 | (substr($route['url'],strlen($route['url'])-1,1) === '/') |
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| 151 | ? substr($route['url'], 0, -1) |
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| 152 | : $route['url'] |
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| 153 | ); |
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| 154 | |||
| 155 | /* ONLY FOR DEBUG CONDITION */ |
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| 156 | $route_request = $route_loop; |
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| 157 | /*$route_request = explode( |
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| 158 | '/', |
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| 159 | (substr($_SERVER['REQUEST_URI'],strlen($_SERVER['REQUEST_URI'])-1,1) === '/') |
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| 160 | ? substr($_SERVER['REQUEST_URI'], 0, -1) |
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| 161 | : $_SERVER['REQUEST_URI'] |
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| 162 | );*/ |
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| 163 | |||
| 164 | if(count($route_loop) !== count($route_request)){ |
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| 165 | continue; |
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| 166 | } |
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| 167 | |||
| 168 | for($rr = 0; $rr < count($route_loop); $rr++){ |
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| 169 | $param = (substr($route_loop[$rr],0,1)==='{'); |
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| 170 | |||
| 171 | if($param){ |
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| 172 | $param_name = substr($route_loop[$rr],1,strlen($route_loop[$rr])-2); |
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| 173 | $data[$param_name] = $route_request[$rr]; |
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| 174 | } |
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| 175 | |||
| 176 | if(!$param and $route_loop[$rr] !== $route_request[$rr]){ |
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| 177 | continue 2; |
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| 178 | } |
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| 179 | } |
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| 180 | |||
| 181 | $this->check_filtering($route); |
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| 182 | |||
| 183 | $this->Controller($route['role']); |
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| 184 | return true; |
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| 185 | } |
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| 186 | |||
| 187 | throw new Exception('Page not found.',404); |
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| 188 | } |
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| 189 | |||
| 190 | public static function filter($filters): Router |
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| 191 | { |
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| 192 | if(self::getInstance()->lastReturn !== null){ |
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| 193 | $currentGroup = end(self::getInstance()->routers)['group']; |
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| 194 | |||
| 195 | foreach (self::getInstance()->routers as $key => $value) { |
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| 196 | |||
| 197 | if($value['group'] === $currentGroup){ |
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| 198 | $currentRoute = self::getInstance()->addFilter(self::getInstance()->routers[$key],$filters); |
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| 199 | self::getInstance()->routers[$key] = $currentRoute; |
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| 200 | } |
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| 201 | |||
| 202 | } |
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| 203 | |||
| 204 | }else{ |
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| 205 | self::getInstance()->routers[count(self::getInstance()->routers)-1] = self::getInstance()->addFilter(end(self::getInstance()->routers),$filters); |
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| 206 | } |
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| 207 | |||
| 208 | return self::getInstance(); |
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| 209 | } |
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| 210 | |||
| 211 | public static function addFilter(array $route, $filter): array |
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| 212 | { |
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| 213 | if(is_null($route['filters'])){ |
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| 214 | $route['filters'] = $filter; |
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| 215 | return $route; |
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| 216 | } |
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| 217 | |||
| 218 | $filters = (is_array($filter)) ? $filter : [0 => $filter]; |
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| 219 | |||
| 220 | if(is_array($route['filters'])){ |
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| 221 | foreach ($route['filters'] as $key => $value) { |
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| 222 | $filters[] = $value; |
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| 223 | } |
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| 224 | }else{ |
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| 225 | $filters[] = $route['filters']; |
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| 226 | } |
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| 227 | |||
| 228 | $route['filters'] = $filters; |
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| 229 | return $route; |
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| 230 | } |
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| 231 | |||
| 232 | public function Controller(string $controll): void |
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| 262 | } |
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| 263 | } |
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| 264 | |||
| 265 | } |
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| 266 |