Convenience Method for Instantiating the Right FakePDO

Given that there are different versions for php7 vs. php8, provide a
convenience method for getting the right one rather than having to have
switching logic in the calling code...

src/FakePdo.php

@@ -0,0 +1,27 @@
+<?php
+namespace Vimeo\MysqlEngine;
+
+use PDO;
+
+class FakePdo
+{
+    /**
+     * @param string $connection_string the connection string
+     * @param string $username the username
+     * @param string $password the password
+     * @param array<array-key, string> $options any options
+     * @return PDO
+     */
+    public static function getFakePdo(
+        string $connection_string,
+        string $username,
+        string $password,
+        array $options
+    ): PDO {
+        if (\PHP_MAJOR_VERSION === 8) {
+            return new Php8\FakePdo($connection_string, $username, $password, $options);
+        }
+
+        return new Php7\FakePdo($connection_string, $username, $password, $options);
+    }
+}