PHP计数器，获取计数号

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            <div class="grid--cell mb0 mt8">Closed <span title="2012-10-06 00:36:16Z" class="relativetime">7 years ago</span>.</div>
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I have set up a php counter which is inserted into a webpage which is on a altogether different server/website by using a script element and setting parameters on the url. the count files are saved as PARAMETER.txt . how can i retrieve the count number and insert it onto the external webpage? i have tried loading the txt files using jQuery $.ajax $.get etc however they don't work. how can I get the count number either from the php file with the unique paramter or from the txt file?

<?php
$id = $_REQUEST['id'];
$post = $_REQUEST['post']; 
if (!is_dir($id)) {
    mkdir($id);
}
if (!empty($post)) {
    if(!file_exists($id.'/'.$post.'.txt')) { 
        $fp = fopen($id.'/'.$post.'.txt',"w");  
        fwrite($fp,"1");  
        fclose($fp); 
    } else {
        $hit_count = @file_get_contents($id.'/'.$post.'.txt');
        echo $hit_count;
        $hit_count++;
        @file_put_contents($id.'/'.$post.'.txt', $hit_count);
    }
} else {
    echo "no post id";
}  
?>

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