implement Link class

src/Link.php

@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\YoTools;
+
+class Link
+{
+    public static function relative2absolute(
+        string $source, // current document url to grab the base
+        string $target, // relative or absolute link
+        ?string &$scheme = null,
+        ?string &$host = null,
+        ?int &$port = null
+    ): string
+    {
+        if (!parse_url($target, PHP_URL_HOST))
+        {
+            $scheme = parse_url($base, PHP_URL_SCHEME);
+            $host   = parse_url($base, PHP_URL_HOST);
+            $port   = parse_url($base, PHP_URL_PORT);
+
+            return $scheme . '://' . $host . ($port ? ':' . $port : null) .
+            '/' .
+            trim(
+                ltrim(
+                    str_replace(
+                        [
+                            './',
+                            '../'
+                        ],
+                        '',
+                        $target
+                    ),
+                    '/'
+                ),
+                '.'
+            );
+        }
+
+        return $target;
+    }
+}