Initial commit

lib/PayPal/Common/ArrayUtil.php

@@ -0,0 +1,19 @@
+<?php
+namespace PayPal\Common;
+
+class ArrayUtil {
+	
+	/**
+	 * 
+	 * @param array $arr
+	 * @return true if $arr is an associative array
+	 */
+	public static function isAssocArray(array $arr) {
+		foreach($arr as $k => $v) {
+			if(is_int($k)) {
+				return false;
+			}
+		}
+		return true;
+	}
+}