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<?php namespace PayPal\Common; /** * Class ArrayUtil * Util Class for Arrays * * @package 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; } }