関数のアクセス数が多い場合、正しく実装できません。2 つの PHP コード
最初の段落:
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --> <?php @session_start(); date_default_timezone_set('Asia/Shanghai'); $link_id =@ mysql_connect('localhost', 'root', 'password'); if ($link_id) { mysql_select_db('database'); mysql_query("set names 'utf8'"); //select 数据库之后加多这一句 } else { echo "数据库连接错误!"; } //var_dump($current); $Datetime=date("Y-m-d G:i:s");//获取注册时间,也就是数据写入到用户表的时间 $bijiao="select max(current) from online"; $max=@mysql_query($bijiao,$link_id); $most= intval( @mysql_result($max,0) ); $current= intval($_SESSION['current']); $query="insert into online(current,mostcount,time) values('".$current."','".$most."','$Datetime')"; $result=mysql_query($query); echo $most; ?>
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --> <?php @session_start(); date_default_timezone_set('Asia/Shanghai'); $link_id =@ mysql_connect('localhost', 'root', 'password'); if ($link_id) { mysql_select_db('database'); mysql_query("set names 'utf8'"); //select 数据库之后加多这一句 } else { echo "数据库连接错误!"; } $bijiao="select max(mostcount) from online"; $max=@mysql_query($bijiao,$link_id); $most= intval( @mysql_result($max,0) ); $time="select time from online where mostcount='$most'"; $time=@mysql_query($time,$link_id); $time=@mysql_result($time,0); $already="select max(mostcount) from record"; $already=@mysql_query($already,$link_id); $already= intval( @mysql_result($already,0) ); if($most>$already) { $query="insert into record(mostcount,time) values('".$most."','$time')"; $result=@mysql_query($query); } ?>