Unparse url function

src/Urls.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Missing;
+
+class Urls 
+{
+    public static function unparse_url(array $parsed): string
+    {
+        $scheme = isset($parsed['scheme']) ? $parsed['scheme'] . "://" : "";
+        $host = isset($parsed['host']) ? $parsed['host'] : "";
+        $path = $parsed['path'] ?? '';
+        $port = isset($parsed['port']) ? ':' . $parsed['port'] : '';
+        $user = $parsed['user'] ?? '';
+        $pass = isset($parsed['pass']) ? ':' . $parsed['pass'] : '';
+        $auth = ($user || $pass) ? "$user$pass@" : '';
+        $query = isset($parsed['query']) ? "?" . $parsed['query'] : "";
+        $fragment = isset($parsed['fragment']) ? "#" . $parsed['fragment'] : "";
+
+        return "$scheme$auth$host$port$path$query$fragment";
+
+    }
+}

tests/urls_test.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Missing\tests;
+
+use \PHPUnit\Framework\TestCase;
+use Missing\Urls;
+
+class Urls_test extends TestCase
+{
+    public function test_unparse_url()
+    {
+        $urls = [
+            '',
+            'foo',
+            'http://www.google.com/',
+            'http://www.google.com:8080/',
+            'http://u:p@foo:1/path/path?q#frag',
+            'http://u:p@foo:1/path/path?#',
+            'ssh://root@host',
+            '://:@:1/?#',
+            'http://:@foo:1/path/path?#'
+        ];
+
+        foreach ($urls as $url) {
+            $parsed = parse_url($url);
+            $rebuildUrl = Urls::unparse_url($parsed);
+            $parsedRebuilt = parse_url($rebuildUrl);
+
+            $this->assertEquals($parsed, $parsedRebuilt, "Failed  to reconstruct URL: '{$url}'");
+
+        }
+    }
+}