我写了一个网络计数器,计数器从 count.txt 获取数字,并在我访问网络时加 1。
但是刷新页面时如何防止它加1???
编码:
<?php
//Get User's IP
if ($_SESSION['your_ip'] != $_SERVER['REMOTE_ADDR']) {
$_SESSION['your_ip'] = $_SERVER['REMOTE_ADDR'];
$addone = ture;
}
else {
$addone = false;
}
//Get the number stored in "count.txt"
$fp = fopen("count.txt",'r');
while(!feof($fp)) {
$buf .= fgets($fp,1024);
}
fclose($fp);
//Convert $buf into number and add 1
if ($addone == ture) {
$buf = intval($buf) + 1;
}
//Replace the number in count.txt by $buf
$fp = fopen("count.txt",'w');
fputs($fp,$buf);
fclose($fp);
//Break $buf
$num1 = intval($buf/100000000);
$buf = $buf%100000000;
$num2 = intval($buf/10000000);
$buf = $buf%10000000;
$num3 = intval($buf/1000000);
$buf = $buf%1000000;
$num4 = intval($buf/100000);
$buf = $buf%100000;
$num5 = intval($buf/10000);
$buf = $buf%10000;
$num6 = intval($buf/1000);
$buf = $buf%1000;
$num7 = intval($buf/100);
$buf = $buf%100;
$num8 = intval($buf/10);
$buf = $buf%10;
$num9 = intval($buf/1);
$buf = $buf%1;
//Display result
echo "<img src=\"elements/num_".$num1.".png\">";
echo "<img src=\"elements/num_".$num2.".png\">";
echo "<img src=\"elements/num_".$num3.".png\">";
echo "<img src=\"elements/num_".$num4.".png\">";
echo "<img src=\"elements/num_".$num5.".png\">";
echo "<img src=\"elements/num_".$num6.".png\">";
echo "<img src=\"elements/num_".$num7.".png\">";
echo "<img src=\"elements/num_".$num8.".png\">";
echo "<img src=\"elements/num_".$num9.".png\">";
?>