Call Larger Images

[Goetch]

Hi, I have searched the forum all morning and have not found the answer to this question, however, I apologize if this question has been already asked. On my current site I only use small and large images. I have installed a facebook like button for my products (that works great by the way) however I have one small problem with it... My small images are 150 x 150 and facebook is telling me that my images should be at least 200 x 200. I would like to call the large image instead of the small image. I have been trying to dig into the php files to try to figure this out however I think I am too much a noob with php... I think I know how to do it I just do not know the proper code to get it done...... Here is my current facebook image code...

<?php
  if (isset($_GET['products_id'])) { // use products_image if products_id exists
    $facebook_image = $db->Execute("select p.products_image from " . TABLE_PRODUCTS . " p where products_id='" . (int)$_GET['products_id'] . "'");
    $fb_image = HTTP_SERVER . DIR_WS_CATALOG . DIR_WS_IMAGES . $facebook_image->fields['products_image'];
  }
  if ($fb_image == '') { // if no products image, use the default image if enabled
   $fb_image = 'http://www.store.com/includes/templates/scb/images/logo.gif';
  }
  if ($fb_image != '') {
?>
<meta property="og:image" content="<?php echo $fb_image; ?>" />

I tried a few things to get the larger image to appear and managed to get to the correct directory and what would be the correct image if it did have the _lrg tag on it... I assume there is a way in php to add the _lrg tag to the end of the image name (before the extension) I just do not know how to do this properly.....

[DrByte]

Here is my current facebook image code...

<?php
  if (isset($_GET['products_id'])) { // use products_image if products_id exists
    $facebook_image = $db->Execute("select p.products_image from " . TABLE_PRODUCTS . " p where products_id='" . (int)$_GET['products_id'] . "'");
    $fb_image = HTTP_SERVER . DIR_WS_CATALOG . DIR_WS_IMAGES . $facebook_image->fields['products_image'];
  }
  if ($fb_image == '') { // if no products image, use the default image if enabled
   $fb_image = 'http://www.store.com/includes/templates/scb/images/logo.gif';
  }
  if ($fb_image != '') {
?>
<meta property="og:image" content="<?php echo $fb_image; ?>" />

I'd be inclined to replace all that with this instead:

<?php
// default image:
$fb_image = HTTP_SERVER . DIR_WS_CATALOG . 'includes/templates/scb/images/logo.gif';
if (isset($_GET['products_id'])) { // use products_image if products_id exists
  $facebook_image = $db->Execute("select p.products_image from " . TABLE_PRODUCTS . " p where products_id='" . (int)$_GET['products_id'] . "'");
  $prod_image = $facebook_image->fields['products_image'];
  $prod_image_extension = substr($prod_image, strrpos($prod_image, '.'));
  $prod_image_base = str_replace($prod_image_extension, '', $prod_image);
  $prod_image_large = $prod_image_base . IMAGE_SUFFIX_LARGE . $prod_image_extension;
  
  if (file_exists(DIR_WS_IMAGES . 'large/' . $prod_image_large)) {
    $prod_image = DIR_WS_IMAGES . 'large/' . $prod_image_large;
  }
  $fb_image = HTTP_SERVER . DIR_WS_CATALOG . $prod_image;
}
  if ($fb_image != '') {
?>
<meta property="og:image" content="<?php echo $fb_image; ?>" />
<?php } ?>

First, it sets a default up-front, which makes things simpler later.
Then it reads the image from the database, parses it into its parts, inserts the "lrg" bit, checks if the file exists, and if it does, then it replaces the value set as default earlier.
Then it carries on to output it as you were doing before.

[Goetch]

Your the best thank you so much!!!! Very helpful!!!

[DrByte]

Actually, since the system has already determined the available images, you could probably save the database query and the more complex logic, and just use the already-available information, like this instead:

<?php
$fb_image = HTTP_SERVER . DIR_WS_CATALOG . 'includes/templates/scb/images/logo.gif';
if ($products_image_large != '') $fb_image = HTTP_SERVER . DIR_WS_CATALOG . $products_image_large;
?>
<meta property="og:image" content="<?php echo $fb_image; ?>" />