多维数组foreach遍历

<?php
$wage=array(
    '市场部'=>array(
        array(1,'高某','市场部经理','5000'),
        array(2,'罗某','职员',3000),
        array(3,'冯某','职员',2500)
        ),
    '产品部'=>array(
        array(1,'李某','产品部经理','5000'),
        array(2,'张某','职员',3000),
        array(3,'王某','职员',2500)
        ),
    '财务部'=>array(
        array(1,'徐某','财务部经理','5000'),
        array(2,'孙某','职员',3000),
        array(3,'赵某','职员',2500)
        )
    );
foreach ($wage as $sector => $table){
    echo '<table border="1" width="600" align="center">';
    echo '<captiom><h1>'.$sector.'十月份工资表</hi></caption>';
    echo '<tr bgcolor="#ff0000"><th>编号</th><th>姓名</th><th>职务</th><th>工资</th></tr>';
    foreach ($table as $row){
        echo '<tr>';
        foreach ($row as $col){
            echo '<td>'.$col.'</td>';
            }
            echo '</tr>';
        }
        echo '</table><br/>';
    }

?>