下列程序输出结果为: 姓名=Tom性别=男年龄=22 姓名=Mary性别=男年龄=20 $arr = array( array("name"=>'Tom','sex'=>'男','age'=>22), array("name"=>'Mary','sex'=>'男','age'=>20) ) foreach($arr as $key => $value) { echo "姓名=".______; echo "性别=".______; echo "年龄=".______; echo ______; }