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How to clear the history in php: 1. Create a PHP sample file; 2. Set the cookie through setcookie; 3. Clear the history through "echo 'clear';" and other diam.
#The operating environment of this article: Windows 7 system, PHP version 7.4, Dell G3 computer.
php How to clear history?
php simply implements cookie history and clearing history functions
The code is as follows:
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>SQT</title> <style>div{ width:300px;height:400px; background:#CFF; padding:20px}</style> </head> <?php //用于测试的文档 $all_data = array( 1 => array('1:标题1','内容1……'), 2 => array('2:标题2','内容2……'), 3 => array('3:标题3','内容3……'), 4 => array('4:标题4','内容4……'), ); $id=isset($_GET['id'])?$_GET['id']:1; //判断有无设置action $action = isset($_GET['action'])?$_GET['action']:$id; if($action=='clear'){ //清空cookie setcookie('history','',time()-3600); //数组清空 $his=array(); }else{ if(!isset($_COOKIE['history'])){ $his[]=$id; }else{ $his=explode('|',$_COOKIE['history']); array_unshift($his, $id); $his=array_unique($his); if(count($his)>4){ array_pop($his); } } } setcookie('history',implode('|', $his)); ?> <body> <div> <form > <table> <tr><td><?php echo $all_data[$id][0]?></td></tr> <tr><td><?php echo $all_data[$id][1]?></td></tr> <tr> <td> <p><a href="04.php?id=<?php echo $id-1==0?4:$id-1;?>">上一页</a></p> </td> <td> <p><a href="04.php?id=<?php echo $id+1==5?1:$id+1;?>">下一页</a></p> </td> </tr> <tr> <td> <p>浏览历史</p> </td> <td> <a href="04.php?action=<? echo 'clear';?>">清除记录</a> </td> </tr> <tr> <ul> <td> <?php foreach($his as $v) {?> <li><a href="04.php?id=<? echo $v;?>"><?php echo $all_data[$v][0] ; ?></a></li> <?php } ?> </td> </ul> </tr> </table> </form> </div> </body> </html>
Copy and paste to run~
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