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一个自定义位数的php多用户计数器代码_php实例

WBOY
WBOYOriginal
2016-06-07 17:26:481033browse

此计数器能够自定义任意位数,而且在免费提供的时候能够显示一个简单的广告。
运行的时候需要在计数器目录下创建一个nobody帐户有权改写的目录datas.
实际运行的例子在
http://www.hnpts.ha.cn/freecount.htm

Header("Content-type: image/png");
if ($user=="") $user="test";
$fn="datas/".$user.".txt";
if ($bit=="") $bit=8;   //取默认值
if (is_readable($fn)) {$f=fopen($fn,"r");
$c=fgets($f,255);fclose($f);} //读出原来的计数值
else $c="0"; //新用户
$l=strlen($c);  //计算实际值长度
$cnt="";
for ($i=0;$i$cnt.=$c;$c1=intval($c);$c1++;
$f=fopen($fn,"w");fputs($f,$c1);fclose($f); //写回
  $font=20;
if (($c1%10==9)&&($user!="test")) {$cnt="www.hnpts.ha.cn";$font=16;}
//达到条件就显示广告
$s=ImageTTFBBox($font,0,"times.ttf", $cnt);
$x=abs($s[4])+8;$y=abs($s[5])+7;
$im = imagecreate($x,$y);
$black = ImageColorAllocate($im, 0,0,0);
$white = ImageColorAllocate($im, 255,255,255);
if ($font==20) {$green = ImageColorAllocate($im, 0,255,0);
imagerectangle($im,1,1,$x-2,$y-2,$white);}
else $green = ImageColorAllocate($im, 255,255,255);
ImageTTFText($im,$font,0, 3,$y-5, $green, "times.ttf", $cnt);
ImagePng($im);
ImageDestroy($im);
?>

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