php多维数组遍历1

实现方式 一
采用PHP本身自带的迭代器类 RecursiveIteratorIterator

  $test_arr = array(1,2,3,array(4,'aa'=>5,6,array(7,'bb'=>8),9,10),11,12); 
  $arrayiter = new RecursiveArrayIterator($test_arr);
  $iteriter = new RecursiveIteratorIterator($arrayiter);
  //直接打印即可按照横向顺序打印出来
  foreach ($iteriter as $key => $val){ 
    echo $key.'=>'.$val; 
  } 
  //结果
  /* 
    0=>1
    1=>2 
    2=>3
    0=>4
    aa=>5
    2=>6
    0=>7
    bb=>8
    4=>9
    5=>10
    4=>11
    5=>12
 */
出处：www.cainiaojc.com/note/qadjbo.html

标签：aa,arr,遍历,RecursiveIteratorIterator,val,test,多维,array,php
来源： https://www.cnblogs.com/bereallyme/p/16387135.html