方法一： <?php function Counter()//定义函数 { $five = "00000";//声明变量，$five,$four等变量表示零的个数，放在数字前边构成6位数 $four = "0000"; $three = "000"; $two = "00"; $one = "0"; $counter = "rec.txt";//存放访问数的目的文件，.dat格式 if(!file_exists($counter))//判断文件是否存在 { $counter = fopen($counter,"w"); $num = 1; fputs($counter,"1");//写入文件 fclose($counter); print "$five"."$num"; }else{ $fp = fopen($counter,"r+"); $num = fgets($fp,"1024");//如果文件存在则读出文件，并加 1 $num = $num + 1; if($num < 10) print "$five"."$num"; elseif($num < 100) print "$four"."$num"; elseif($num < 1000) print "$three"."$num"; elseif($num < 10000) print "$two"."$num"; elseif($num < 100000) print "$one"."$num"; else print "$num"; } $fp = fopen("$counter","w"); fputs($fp,"$num"); fclose($fp); } ?> <html> <head> <title>网站访客统计</title> </head> <body> <center> <h1>网站访客统计</h1> <font size="6" face="隶书" >欢迎访问CMS集中营！您是第</font> <B> <font size="9" face="Verdana" color="#FF0000"><?php Counter() ?></font> </B> <font size="6" face="隶书" >位访客！</font> </center> </body> </html> 方法二： <html> <head> <title>网站访客统计</title> </head> <body> <center> <h1>网站访客统计</h1> <font size="6" face="隶书" >欢迎访问CMS集中营！您是第</font> <B> <?php $counter=1; if(file_exists("rec.txt")) { $fp=fopen("rec.txt","r"); $counter=fgets($fp,1024); $counter++; fclose($fp); } $fp=fopen("rec.txt","w"); fputs($fp,$counter); fclose($fp); echo "<font size='9' face='Verdana' color='#FF0000'>".$counter."</font>"; ?> </B> <font size="6" face="隶书" >位访客！</font> </center> </body> </html>