title: How to get size of contents derived from file_get_contents()
body: <p>I m using this technique to store the image as blob in mysql</p>
  
  <pre><code>INSERT INTO aw_offers_v2
                      (
                      id,name,description,payout_type,
                      payout,expiration_date,creation_date,preview_url,
                      tracking_url,categories,countries,countries_short,
                      api_key,network_id, icon)
                      VALUES
                      ('$id','$name','$description','$payout_type',
                      '$payout','$expiration_time','$creation_time','$preview_url',
                      '$tracking_url','$categories','$countries','$countries_short',
                      '$api','$api_url','".mysql_real_escape_string(file_get_contents($cover_image_src))."')
  </code></pre>
  
  <p>now the issue is, how can i get the size of the blob element and store it in another field</p>
  
  <p>say if the blob is 5.34kb i need to get it and store into another field called blob_size</p>