简单教程
提交运行
代码编辑器：
<?php $cars=array( "Volvo" => array("XC60", "XC90"), "BMW" => array("X3", "X5"), "Toyota"=>array("Highlander") ); echo "Normal count: " , sizeof($cars),"<br>"; echo "Recursive count: " , sizeof($cars,1);
运行结果：