自己在http://202.103.176.81/brun/phpdev/上用的计数器就是这个了，不知怎么了，现在21POP.COM把GD库给弄没了，好难过不能用不了！
<?php
$counterFile = "counter.txt";
function displayCounter($counterFile) {
if (!file_exists($counterFile)) {
exec( "echo 0 > $counterFile");
}
$fp = fopen($counterFile,"r");
$num = fgets($fp,5);
$num += 1;
fclose($fp);
Header("Content-type: image/gif");
$im = imagecreate(58,16);
$black = ImageColorAllocate($im, 0,0,0);
$white = ImageColorAllocate($im, 255,255,255);
$Fcolor = ImageColorAllocate($im, 0,0,255);
$tran= imagecolortransparent($im, $white);
imagefill($im, 0, 0, $tran);
$fp = fopen($counterFile,"w");
fputs($fp, $num);
fclose($fp);
for ($I=1; $I<6; $I++) {
if ($num < pow(10,$I))
$countnum="0".$countnum;
}
$countnum = $countnum . $num;
imagestring($im, 5, 1, 2,$countnum, $Fcolor);
ImageGif($im);
ImageDestroy($im);
}
displayCounter($counterFile);
?>
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