<?php function jsq(){ $arr = explode("/",$_SERVER["PHP_SELF"]);//获取当前文件的位置信息并以“/”分割存入数组中 $datfile = $arr[count($arr)-1].".dat";//设置文件位置 if(!file_exists($datfile)){//如果文件不存在 $cf = fopen($datfile,"w");//建立计数器文件 fputs($cf,"0");//初始化值为0 fclose($cf);//关闭文件 }else{//文件存在则取回计数器里的数据 $cf = fopen($datfile,"r"); $counter = trim(fgets($cf,10));//读取10个长度的字符 fclose($cf); } $counter++;//把计数器自增1 $cf = fopen($datfile,"w");//写入新数据 fputs($cf,$counter);//将字符$counter写入打开的文件 fclose($cf); return $counter; ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns=" http://www.w3.org/1999/xhtml"> <head> <title>web计数器</title> <meta http-equiv="Content-Type" content="text/html" charset=utf-8 /> </head> <body> 您是的第<?php echo jsq(); ?>位网友 </body> </html>