$a=array(‘fruits‘=>array(‘a‘=>‘orange‘,‘b‘=>‘grape‘,‘c‘=>‘apple‘),
     ‘numbers‘=>array(1,2,3,4,5,6),
     ‘holes‘=>array(‘first‘,5=>‘second‘,‘third‘)
 );

foreach($a as $v ){
    foreach($v as $value ){
        echo $value,"<br/>";
    }
}

多维数组遍历.php