Add pure-PHP SQLite engine compatibility for WordPress and WooCommerce

composer.json

@@ -9,8 +9,10 @@
 	},
 	"require": {
 		"php": ">=7.2",
-		"ext-pdo": "*",
-		"ext-pdo_sqlite": "*"
+		"ext-pdo": "*"
+	},
+	"suggest": {
+		"ext-pdo_sqlite": "Recommended. Without the PDO SQLite driver, the plugin falls back to the bundled (slower) pure-PHP database engine."
 	},
 	"require-dev": {
 		"ext-mbstring": "*",

packages/mysql-on-sqlite/src/load.php

@@ -33,6 +33,7 @@
 } else {
 	require_once __DIR__ . '/mysql/class-wp-mysql-parser.php';
 }
+require_once __DIR__ . '/php-engine/load.php';
 require_once __DIR__ . '/sqlite/class-wp-sqlite-connection.php';
 require_once __DIR__ . '/sqlite/class-wp-sqlite-configurator.php';
 require_once __DIR__ . '/sqlite/class-wp-sqlite-driver.php';