php 文件统计人数代码
代码实例:
$countfile = "num.txt";
//定义计数器写入的文件是当前目录下count.txt,然后我们应当测试该文件能否打开
if (($fp = fopen($countfile, "r ")) == false) { //用读写模式打开文件,若不能打开就退出
printf ("打开文件 %s 失败!",$countfile);
exit;
}
else
{
//如果文件能够正常打开,就读入文件中的数据,假设是1
$count = fread ($fp,10);
//读取10位数据
$count = $count 1;
fclose ($fp);
//关闭当前文件
$fp = fopen($countfile, "w ");
//以覆盖模式打开文件
fwrite ($fp,$count);
//写入加1后的新数据
fclose ($fp);
//并关闭文件
}
//$count转换为图片模式的代码
$fp = fopen ($countfile, "r"); //以只读模式打开文件
$array_count = 1; //定义一个表示数组元素位置的变量,下面要用
while (! feof($fp)) {
$current_number = fgetc($fp);
$counter_array[$array_count] = $current_number;
$array_elements = count ($counter_array);
$array_count = $array_count 1;
}
//显示代码
echo ("
欢迎您,第"); for ($array_id = 1;$array_id echo (" ![]() } echo ("位客人 |
?>

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