PHP: Reading the image URLS

<?php
/*
 * read csv of contacts
 */
$title = 'People Recommendations';
require 'inc/header.php';

/*echo '<pre>';
include 'data/csv/people.csv';
echo '</pre>';*/


//open a file for reading
if(($handle = fopen('data/csv/people.csv', 'r')) !== false) {   

    //read CSV line by line  - returning an array of columns    
    $header = fgetcsv($handle, ','); 

    //var_dump($header);    
    extract(array_flip($header));    
    //echo $first;    

    echo '<div class="row">';
        $count=0;
        while (($contact = fgetcsv($handle)) !== false) {
            if($count > 0 && $count % 4 == 0) {
            echo "</div>\n";
            echo '<div class="row">';

        } 
        $count++;
        echo '<div class="col-xs-6 col-md-3">';
        echo '<div class="thumbnail">';
        echo '<img src="'. $contact[$img] . '" />';
        echo '<div class="caption">';
        echo '<h4 class="media-heading">' . $contact[$first] .  ' '  . $contact[$last] . '</h4>';
        echo '<a href="' . $contact[$website]. '" target="_blank">' . $contact[$website]. '</a>';
        echo '<br />';
        echo 'Twitter: <a href="https://twitter.com/' . $contact[$twitter] .  '" target="_blank">@' . $contact[$twitter]  . '</a>';
        echo '</div>';
        echo '</div>';
        echo '</div>';
    }
echo '</div>';
}

 fclose($handle); 

 require 'inc/footer.php';