Advanced Search

Get first image from Wordpress post

/ Published in: PHP
Save to your folder(s)

Expand | Embed | Plain Text

Copy this code and paste it in your HTML 
  1. function bdw_get_images() {
  2.  
  3.     // Get the post ID
  4.     $iPostID = $post->ID;
  5.  
  6.     // Get images for this post
  7.     $arrImages =& get_children('post_type=attachment&post_mime_type=image&post_parent=' . $iPostID );
  8.  
  9.     // If images exist for this page
  10.     if($arrImages) {
  11.  
  12.         // Get array keys representing attached image numbers
  13.         $arrKeys = array_keys($arrImages);
  14.  
  15.         /******BEGIN BUBBLE SORT BY MENU ORDER************
  16.         // Put all image objects into new array with standard numeric keys (new array only needed while we sort the keys)
  17.         foreach($arrImages as $oImage) {
  18.             $arrNewImages[] = $oImage;
  19.         }
  20.  
  21.         // Bubble sort image object array by menu_order TODO: Turn this into std "sort-by" function in functions.php
  22.         for($i = 0; $i < sizeof($arrNewImages) - 1; $i++) {
  23.             for($j = 0; $j < sizeof($arrNewImages) - 1; $j++) {
  24.                 if((int)$arrNewImages[$j]->menu_order > (int)$arrNewImages[$j + 1]->menu_order) {
  25.                     $oTemp = $arrNewImages[$j];
  26.                     $arrNewImages[$j] = $arrNewImages[$j + 1];
  27.                     $arrNewImages[$j + 1] = $oTemp;
  28.                 }
  29.             }
  30.         }
  31.  
  32.         // Reset arrKeys array
  33.         $arrKeys = array();
  34.  
  35.         // Replace arrKeys with newly sorted object ids
  36.         foreach($arrNewImages as $oNewImage) {
  37.             $arrKeys[] = $oNewImage->ID;
  38.         }
  39.         ******END BUBBLE SORT BY MENU ORDER**************/
  40.  
  41.         // Get the first image attachment
  42.         $iNum = $arrKeys[0];
  43.  
  44.         // Get the thumbnail url for the attachment
  45.         $sThumbUrl = wp_get_attachment_thumb_url($iNum);
  46.  
  47.         // UNCOMMENT THIS IF YOU WANT THE FULL SIZE IMAGE INSTEAD OF THE THUMBNAIL
  48.         //$sImageUrl = wp_get_attachment_url($iNum);
  49.  
  50.         // Build the <img> string
  51.         $sImgString = '<a href="' . get_permalink() . '">' .
  52.                             '<img src="' . $sThumbUrl . '" width="150" height="150" alt="Thumbnail Image" title="Thumbnail Image" />' .
  53.                         '</a>';
  54.  
  55.         // Print the image
  56.         echo $sImgString;
  57.     }
  58. }

URL: http://www.rlmseo.com/blog/get-images-attached-to-post/

Report this snippet


Comments

RSS Icon Subscribe to comments

You need to login to post a comment.