PHP計數器的實現代碼

複製代碼 代碼如下:<?php
/*使用文字檔記錄資料的簡單實現*/
$counter=1;
if(file_exists("mycounter.txt")){
$fp=fopen("mycounter.txt","r");
$counter=fgets($fp,9);
$counter++;
fclose($fp);
}
$fp=fopen("mycounter.txt","w");
fputs($fp,$counter);
fclose($fp);
echo "<h1>您是第".$counter."次訪問本頁面！<h1>";
?>

複製代碼 代碼如下:<?php
//下面這個為使用基於資料庫的簡單計數器，未添加其他防止一人重複重新整理的方法。僅供參考。。
$conn=mysql_connect("localhost","root","abc");
$result=mysql_query("use db_counter");
$re=mysql_query("select * from tb_counter");
$result=mysql_fetch_row($re);
$counter=$result[0];
echo "您是第{$counter}位訪問者！";
$counter+=1;echo "<hr>{$counter}";
mysql_query("update tb_counter set counter=$counter");
mysql_close($conn);
?>