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Speed up a file_get_html in jqGrid table

Posted on 2014-09-08
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Last Modified: 2014-09-15
I have a jqGrid table that works great. I am trying to user file_get_html function to grab icons from a site and place them in table. It works fine but is taking a lot longer to load. If i remove that feature of grabbing those icons its much quicker.

Is there any way to speed that up?

Here is my function

while($row = mysql_fetch_array($result,MYSQL_ASSOC)) { 
    $response->rows[$i]['id']=$row['activity'];

    $response->rows[$i]['cell']=array($row['app_name'],$row['activity'], '<a href=https://**.**.com/**/**/details?id=' . $row['activity'] . ' target="_blank">Link</a>' ,  '<a href='. getUrl($row['activity']) .' target="_blank"><img src='. getUrl($row['activity']) .' height="50px" width="50px"></img></a>' ,$row['count']); $i++;
} 
echo json_encode($response);

function getUrl($url){

    $html = @file_get_html("https://**.**.com/**/**/**?id=".$url);
    
    if (method_exists($html,"find")) {
        if ($html->find('html')) {
            
            foreach ($html->find('.cover-container') as $e) {
                $obj = str_get_html($e);
                foreach ($obj->find('img') as $ea) {
                    $logoImage =  $e->innertext;
                    $link= $ea->src . '<br>';
                }
            }
            $link2 = substr($link, 0, -9);
            return $link2;
        }
    }else{
        return 'http://www.***.com/****/assets/images/cancel.png';
    }

}

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I see im using a foreach twice and there is only one cover-container. that would help by removing those foreach's? How would that look. Ive tried removing the foreach's and does work and still takes about the same amount of time to load.
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Question by:bignadad
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3 Comments
 
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Accepted Solution

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Ray Paseur earned 500 total points
ID: 40310322
What do you see when you use YSlow to time the various parts of the scripts?  Almost certainly, anything that slows down the process of rendering a web page will be related to HTTP latency or disk I/O.  You might want to post the Ctual URLs you are using here, so we can see what kind of responsiveness they provide.

Also, I noticed that you're using the MySQL extension.  PHP is doing away with MySQL support.  You will want to move to one of the supported extensions.  This article explains why that is happening and what you must do to keep your scripts running in the future.
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/PHP_Databases/A_11177-PHP-MySQL-Deprecated-as-of-PHP-5-5-0.html
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Author Comment

by:bignadad
ID: 40310343
Thanks. I'll look at yslow now.

I understand about using mysqli. I just have not updated this particular page yet.
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LVL 109

Expert Comment

by:Ray Paseur
ID: 40310591
YSlow should be able to help a lot.  It will pinpoint the most likely reasons for the slow response.
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