Apache kills mysql? mysql_fetch_object(): supplied argument is not a valid MySQL result resource
===

I searched all over the internet and i didint find any answere to my question..this is my last hope.

So i have a php script that i run directly from the browser and i get 2 errors:


Warning: mysql_fetch_object(): supplied argument is not a valid MySQL result resource in...
Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in...

In this script i make a query to select all blogs from my blog table:

$result = $this->query("
     SELECT *
     FROM blogs
");

And i get their feeds! So this script takes a little bit to execute, like 40secs. In my table i have 100 blogs and whenevery i run the script i get those 2 errors. 

Important to know: In case i change the query like this i wont get those errors:

$result = $this->query("
     SELECT *
     FROM blogs
     LIMIT 0,70
");

So i am very sure that it has to do with some system admin settings. I use a shared host. So when i make operations for all 100 blogs i get errors and when i use only 70 blogs i dont.

Its like i lost the mysql conexion or something. The querys is not wrong, i printed them on the screen and checked them in phpmyadmin and they work.

One of the errors comes from here:

$result = $this->query("
    SELECT *
    FROM blogs_settings
");
        
$settings = $this->fetch_object($result);
        
return $settings->max_feeds;

This function is used to get the max feeds/page and i get that error, and the function has nothing wrong. I've set the max_execution_time to 120 and i dont know what else can i do.

I am very sure that lots of people got this error, and if there is somebody who knows, or guess what is the problem, i am sure that not only me will apreciate.

Thanks