一个简单的图形计数器

  •   2009-08-01/08:15
  • 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 00:00:00' 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);

    ?>



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