需要MySQL，GD的支持，linux下php4RC1通过，这也是我做的系统中正在用的。 <?php /*** hit_count表只一个字段hit_count page_visit_record表是用来控制一个ip一天内只产生一个计数器跳动 CREATE TABLE page_visit_record ( visit_time datetime DEFAULT '0000-00-00 0' NOT NULL, remote_addr char(15) NOT NULL, visit_page char(60) NOT NULL, KEY visit_time (visit_time, visit_page), PRIMARY KEY (visit_time) ); ***/ include("config.inc.php3"); $query="select count(*) as tong from page_visit_record where remote_addr='$REMOTE_ADDR' and date_format(visit_time,'%Y-%m-%d')=curdate()"; $result=@mysql_query($query,$dbconnect); $has_count=@mysql_result($result,0,"tong"); @mysql_query("lock tables hit_count write",$dbconnect); $query="select * from hit_count"; $result=@mysql_query($query,$dbconnect); if(@mysql_num_rows($result)>0){ $cur_count=@mysql_result($result,0,"hit_count"); if($has_count==0){ $cur_count++; $query="update hit_count set hit_count='$cur_count'"; @mysql_query($query,$dbconnect); } @mysql_query("unlock tables",$dbconnect); } else{ $cur_count=1; $query="insert into hit_count (hit_count) values ('$cur_count')"; @mysql_query($query,$dbconnect); @mysql_query("unlock tables",$dbconnect); } while(strlen($cur_count)<8) $cur_count="0$cur_count"; $visit_time=date("Y-m-d H:i:s"); $query="insert into page_visit_record (visit_time,remote_addr,visit_page) values ('$visit_time','$REMOTE_ADDR','$page')"; @mysql_query($query,$dbconnect); Header("Content-type: image/gif"); $im = imagecreate(56,16); $black = ImageColorAllocate($im, 0,0,0); $blue = ImageColorAllocate($im, 0,0,255); $white = ImageColorAllocate($im, 255,255,255); $yellow = ImageColorAllocate($im, 255,255,0); imagerectangle($im, 0, 0, 54, 14, $blue); //imagestring($im, 2, 4, 1, $cur_count, $yellow); imagestring($im, 2, 4, 1, $cur_count, $yellow); ImageGif($im); ImageDestroy($im); ?>
查看更多关于一个简单的图形计数器-PHP实例的详细内容...