一个简单的php 文本计数器的代码

<?
/**
 * 简单的文本计数器
* by www.jb200.com
* date 2013/3/22
*/
$memo_file="count/vst.txt";
if ($phpxcount<>$REMOTE_ADDR){
$visits = file($memo_file);
$number_of_last_visit = $visits[0];
$number_of_new_visit = ++$number_of_last_visit;
$fp = fopen($memo_file, "w");
$fw = fwrite($fp, $number_of_new_visit);
fclose($fp);

$len_str = strlen($number_of_new_visit);
for($i=(0);$i<$len_str;$i++){
 $numbers_exploded = substr($number_of_new_visit,$i,1);
 $output_str = $output_str . "<img src="$numbers_exploded.gif">";
}
}else{
 $visits = file($memo_file);
 $number_of_last_visit = $visits[0];
 $number_of_new_visit = $number_of_last_visit;
 $fp = fopen($memo_file, "w");
 $fw = fwrite($fp, $number_of_new_visit);
 fclose($fp);

$len_str = strlen($number_of_new_visit);
for($i=(0);$i<$len_str;$i++){
 $numbers_exploded = substr($number_of_new_visit,$i,1);
 $output_str = $output_str . "<img src="$numbers_exploded.gif">";
}
}
echo $output_str;
?>