PHP编程：thinkphp浏览历史功能实现方法

cookie_history($id,$info['title'],$info['price'],$info['pic'],$thisurl);

/**
? +----------------------------------------------------------
?* 浏览记录依照时间排序
? +----------------------------------------------------------
?*/
function my_sort($a,$b){
$a = substr($a,1);
$b = substr($b,1);
if ($a == $b) return 0;
return ($a > $b) ? -1 : 1;
? }
/**
? +----------------------------------------------------------
?* 网页浏览记录生成
? +----------------------------------------------------------
?*/
function cookie_history($id,$title,$price,$img,$url){
$dealinfo['title'] = $title;
$dealinfo['price'] = $price;
$dealinfo['img'] = $img;
$dealinfo['url'] = $url;
$time = 't'.NOW_TIME;
$cookie_history = array($time => json_encode($dealinfo));? //设置cookie
if (!cookie('history')){//cookie空,初始一个
cookie('history',$cookie_history);
}else{
$new_history = array_merge(cookie('history'),$cookie_history);//添加新浏览数据
uksort($new_history,"my_sort");//依照浏览时间排序
$history = array_unique($new_history);
if (count($history) > 4){
$history = array_slice($history,4);
}
cookie('history',$history);
}
}
/**
? +----------------------------------------------------------
?* 网页浏览记录读取
? +----------------------------------------------------------
?*/
function cookie_history_read(){
$arr = cookie('history');
foreach ((array)$arr as $k => $v){
$list[$k] = json_decode($v,true);
}
return $list;
}

$this->assign('history',cookie_history_read());