php的計數器程序

1）文本計數器<?php$countfile="/count.txt";;;//設置保存數據的文件if (!file_exists($countfile)){//判斷文件是否存在exec( "echo 0 > $countfile");} $fp = fopen($countfile,"rw"); $length=filesize($countfile);$num = fgets($fp,$length); $num += 1; exec( "rm -rf $countfile");exec( "echo $num > $countfile");print "訪問量總計:"."$num"."人次";;;//顯示訪問次數?>2）圖形計數器<?$countfile="/count-num.txt";;;//設置保存數據的文件if (!file_exists($countfile));;//判斷文件是否存在{exec( "echo 0 > $countfile");} $fp = fopen($countfile,"rw"); $length=filesize($countfile);$num = fgets($fp,$length); $num += 1; exec( "rm -rf $countfile");exec( "echo $num > $countfile");$len_str = strlen($num);for($i=0;$i<$len_str;$i++){$each_num = substr($num,$i,1);$out_str = $out_str . "<img src="$each_num.gif">";}print "訪問量總計:"."$out_str"."人次";;;//顯示訪問次數?>