feat: context variables

examples/index.php

@@ -75,6 +75,11 @@ $app->get("/greet/:greeting", function ($c) {
 
 $app->route("/users", $user);
 
+$app->use(function ($ctx, $next) {
+    $ctx->set("message", "Dumbo");
+    return $next($ctx);
+});
+
 $app->use(function ($c, $next) {
     $c->header("X-Powered-By", "Dumbo");
 
@@ -82,7 +87,9 @@ $app->use(function ($c, $next) {
 });
 
 $app->get("/", function ($c) {
-    return $c->html("<h1>Hello from Dumbo!</h1>", 200, [
+    $message = $c->get("message");
+
+    return $c->html("<h1>Hello from $message!</h1>", 200, [
         "X-Hello" => "World",
     ]);
 });

src/Context.php

@@ -5,6 +5,7 @@ class Context
 {
     public $req;
     public $res;
+    private $variables;
 
     public function __construct($method, $params, $query, $body, $headers)
     {
@@ -48,4 +49,19 @@ class Context
     {
         return $this->req->method();
     }
+
+    public function set(string $key, $value): void
+    {
+        $this->variables[$key] = $value;
+    }
+
+    public function get(string $key)
+    {
+        return $this->variables[$key] ?? null;
+    }
+
+    public function has(string $key): bool
+    {
+        return isset($this->variables[$key]);
+    }
 }