PHP一和二维数组： ``` <?php // 一位数组 $arr1 = array( "num1" => "1", "num1" => "2", "num1" => "3" ); // 二维数组 $arr2 = array( "0" => array("item1", "text1"), "1" => array("item2", "text1"), "2" => array("item3","text1") ); ```