随机取出数组中的某些值，并删除它们

<?php

  $prize_arr = array(
       array(‘id‘ => 1, ‘prize‘ => ‘平板电脑‘, ‘v‘ => 1), //其中id表示中奖等级，prize表示奖品，v表示中奖概率（这里暂时当人数了
       array(‘id‘ => 2, ‘prize‘ => ‘数码相机‘, ‘v‘ => 2),
       array(‘id‘ => 3, ‘prize‘ => ‘音箱设备‘, ‘v‘ => 3),
       array(‘id‘ => 4, ‘prize‘ => ‘4G优盘‘, ‘v‘ => 4),
  );
  
  
  $persons = array(
      ‘0‘ => ‘aaa‘,
      ‘1‘ => ‘bbb‘,
      ‘2‘ => ‘ccc‘,
      ‘3‘ => ‘ddd‘,
      ‘4‘ => ‘eee‘,
      ‘5‘ => ‘fff‘,
      ‘6‘ => ‘ggg‘,
      ‘7‘ => ‘hhh‘,
      ‘8‘ => ‘iii‘,
      ‘9‘ => ‘jjj‘,
      ‘10‘ => ‘kkk‘,
  );
  shuffle($persons);// 打乱顺序，表示随机取人
  
  
  $finall_arr = array();
  foreach($prize_arr as $val){
      
      $finall_arr[$val[‘id‘]] = array(
          ‘person‘ => get_del($persons, $val[‘v‘]),
      ); 
  }
  
  print_r($finall_arr);
  
  // 取出一部分元素，并删除它们。传递数组地址
  function get_del(&$arr, $length){
      $temp = array_slice($arr, 0, $length);// 取出
      array_splice($arr, 0, $length);// 删除，这个函数很强大，对数组的增删改都可以...第四个参数可以替换
      return $temp;
  }