<?php
 $arr = array(//定义外层数组
 "北京负责人"=>array(1,'高某','A公司','北京市','(010)987654321','gm@Linux.com'),//子数组1
 "上海负责人"=>array(2,'洛某','B公司','上海市','(021)123456789','lm@apache.com'),//子数组2
 "天津负责人"=>array(3,'峰某','C公司','天津市','(022)24680246','fm@mysql.com'), //子数组3
 "重庆负责人"=>array(4,'书某','D公司','重庆市','(023)13579135','sm@php.com')  //子数组4
 );
 
 foreach($arr as $key=>$arr_item){
  echo $key; //取出数组的键
  echo "<pre>";
   print_r($arr_item); //$arr_item就是子数组了
  echo "</pre>";
  foreach($arr_item as $value){
   echo $value."===";  //数组的值
  }
 }
?>