fix: passing empty array to where() throws (#21)

src/MySQL.php

@@ -72,7 +72,7 @@
 		}
 
 		// Create a WHERE statement from filters
-		public function where(?array ...$conditions): self {
+		public function where(array ...$conditions): self {
 			$values = [];
 			$filters = [];
 
@@ -80,6 +80,11 @@
 			foreach ($conditions as $condition) {
 				$filter = [];
 
+				// Move along if the condition is empty
+				if (empty($condition)) {
+					continue;
+				}
+
 				// Create SQL string and append values to array for prepared statement
 				foreach ($condition as $col => $value) {
 					if ($this->model && !$this->in_model($col)) {
@@ -96,6 +101,11 @@
 				$filters[] = "(" . implode(" AND ", $filter) . ")";
 			}
 
+			// Do nothing if no filters were set
+			if (empty($filters)) {
+				return $this;
+			}
+
 			// OR all filter groups
 			$this->filter_sql = implode(" OR ", $filters);
 			// Set values property