first version

kirby/src/Http/Query.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Kirby\Http;
+
+use Kirby\Toolkit\Obj;
+
+/**
+ * A wrapper around a URL query string
+ * that converts it into a Kirby Obj for easier
+ * access of each query attribute.
+ */
+class Query extends Obj
+{
+    public function __construct($query)
+    {
+        if (is_string($query) === true) {
+            parse_str(ltrim($query, '?'), $query);
+        }
+
+        parent::__construct($query ?? []);
+    }
+
+    public function isEmpty(): bool
+    {
+        return empty((array)$this) === true;
+    }
+
+    public function isNotEmpty(): bool
+    {
+        return empty((array)$this) === false;
+    }
+
+    public function __toString(): string
+    {
+        return $this->toString();
+    }
+
+    public function toString($questionMark = false): string
+    {
+        $query = http_build_query($this);
+
+        if (empty($query) === true) {
+            return '';
+        }
+
+        if ($questionMark === true) {
+            $query = '?' . $query;
+        }
+
+        return $query;
+    }
+}