How to browse history in php

This article mainly introduces the method of browsing history in PHP, involving the skills of operating cookies in PHP. It is of great practical value. Friends in need can refer to it.

The example of this article describes the method of browsing history in PHP. .

The specific implementation method is as follows:

/**
 * 商品历史浏览记录
 * $data 商品记录信息
 */
private function _history($data)
{
  if(!$data || !is_array($data))
  {
    return false;
  }
  //判断cookie类里面是否有浏览记录
  if($this->_request->getCookie('history'))
  {
    $history = unserialize($this->_request->getCookie('history'));
    array_unshift($history, $data); //在浏览记录顶部加入
    /* 去除重复记录 */
    $rows = array();
    foreach ($history as $v)
    {
      if(in_array($v, $rows))
      {
        continue;
      }
      $rows[] = $v;
    }
    /* 如果记录数量多余5则去除 */
    while (count($rows) > 5)
    {
      array_pop($rows); //弹出
    }
    setcookie('history',serialize($rows),time()+3600*24*30,'/');
  }
  else
  {
    $history = serialize(array($data));
    setcookie('history',$history,time()+3600*24*30,'/');
  }
}

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