115 lines
3.2 KiB
PHP
115 lines
3.2 KiB
PHP
<?php
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class Route {
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private static $routes = Array();
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private static $pathNotFound = null;
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private static $methodNotAllowed = null;
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/**
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* Function used to add a new route
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* @param string $expression Route string or expression
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* @param callable $function Function to call if route with allowed method is found
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* @param string|array $method Either a string of allowed method or an array with string values
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*
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*/
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public static function add($expression, $function, $method = 'get'){
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array_push(self::$routes, Array(
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'expression' => $expression,
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'function' => $function,
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'method' => $method
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));
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}
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public static function pathNotFound($function) {
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self::$pathNotFound = $function;
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}
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public static function methodNotAllowed($function) {
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self::$methodNotAllowed = $function;
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}
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public static function run($basepath = '/', $case_matters = false, $trailing_slash_matters = false, $multimatch = false) {
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// Parse current URL
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$parsed_url = parse_url($_SERVER['REQUEST_URI']);
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if (isset($parsed_url['path']) && $parsed_url['path'] != '/') {
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if ($trailing_slash_matters) {
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$path = $parsed_url['path'];
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} else {
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$path = rtrim($parsed_url['path'], '/');
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}
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} else {
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$path = '/';
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}
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// Get current request method
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$method = $_SERVER['REQUEST_METHOD'];
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$path_match_found = false;
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$route_match_found = false;
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foreach (self::$routes as $route) {
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// If the method matches check the path
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// Add basepath to matching string
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if ($basepath != '' && $basepath != '/') {
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$route['expression'] = '('.$basepath.')'.$route['expression'];
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}
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// Add 'find string start' automatically
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$route['expression'] = '^'.$route['expression'];
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// Add 'find string end' automatically
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$route['expression'] = $route['expression'].'$';
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// Check path match
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if (preg_match('#'.$route['expression'].'#'.($case_matters ? '' : 'i'), $path, $matches)) {
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$path_match_found = true;
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// Cast allowed method to array if it's not one already, then run through all methods
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foreach ((array)$route['method'] as $allowedMethod) {
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// Check method match
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if (strtolower($method) == strtolower($allowedMethod)) {
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array_shift($matches); // Always remove first element. This contains the whole string
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if ($basepath != '' && $basepath != '/') {
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array_shift($matches); // Remove basepath
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}
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call_user_func_array($route['function'], $matches);
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$route_match_found = true;
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// Do not check other routes
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break;
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}
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}
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}
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// Break the loop if the first found route is a match
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if($route_match_found&&!$multimatch){
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break;
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}
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}
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// No matching route was found
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if (!$route_match_found) {
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// But a matching path exists
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if ($path_match_found) {
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if (self::$methodNotAllowed) {
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call_user_func_array(self::$methodNotAllowed, Array($path,$method));
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}
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} else {
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if (self::$pathNotFound) {
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call_user_func_array(self::$pathNotFound, Array($path));
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}
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}
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}
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}
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}
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