php运算符有问题

Question

I want to compare two values and if one is greater than the other then it performs some update in the database, however the result always returns false. this is an example of the part of the code im struggling with:

<?php 
$page = mysql_fetch_object(mysql_query("SELECT * FROM `site` WHERE `id`='{$posts['him']}'"));
$count = file_get_contents($site->site_url . 'count/numbercheck.php?url=' . ($page->url));
if(is_numeric($count) && $count > $posts['count'])
{
    echo 'true';
}else{
    echo 'false';   
}

?>

this echos false. The $posts['count'] comes from a jquery post on another page. and I'm sure that $count is greater than $posts['count']. And just to be sure then I did this:

<?php 
$page = mysql_fetch_object(mysql_query("SELECT * FROM `site` WHERE `id`='{$posts['him']}'"));
$count = file_get_contents($site->site_url . '/count/numbercheck.php?url=' . ($page->url));
if(is_numeric($count) && $count > $posts['count'])
{
    echo 'true' . $count . ' ' . $posts['count'];
}else{
    echo 'false' . $count . ' ' . $posts['count'];  
}

?>

that returns "false 86 85". I don't get it, what I am doing wrong? its clear to me that 86 is greater than 85.

Answer 1

file_get_contents() returns a string value so it is always going to evaluate as false when using is_numeric()

If you want to return an array (one item for each line in the file), you should use file() instead of file_get_contents()