fix: initialize arrays before using (#765)

* fix!: update deps to required versions

* fix; initialize arrays before using

includes/data/connection/class-customer-connection-resolver.php

@@ -49,7 +49,8 @@ public function get_query_args() {
 		/**
 		 * Prepare for later use
 		 */
-		$last = ! empty( $this->args['last'] ) ? $this->args['last'] : null;
+		$last       = ! empty( $this->args['last'] ) ? $this->args['last'] : null;
+		$query_args = [];
 
 		/**
 		 * Set the $query_args based on various defaults and primary input $args

includes/mutation/class-checkout.php

@@ -145,6 +145,9 @@ public static function mutate_and_get_payload() {
 				 */
 				do_action( 'graphql_woocommerce_before_checkout', $args, $input, $context, $info );
 
+				// We define this now and pass it as a reference.
+				$results = [];
+
 				$order_id = Checkout_Mutation::process_checkout( $args, $input, $context, $info, $results );
 
 				$order = \WC_Order_Factory::get_order( $order_id );

wp-graphql-woocommerce.php

@@ -115,6 +115,9 @@ function dependencies_not_ready( &$deps = [] ) {
  * @return void
  */
 function init() {
+	// We define this now and pass it as a reference.
+	$not_ready = [];
+
 	if ( empty( dependencies_not_ready( $not_ready ) ) ) {
 		require_once get_includes_directory() . 'class-wp-graphql-woocommerce.php';
 		WP_GraphQL_WooCommerce::instance();