Ticket #8732: wp_get_attachment_image_alt.diff

wp-includes/media.php

@@ -514 +514 @@
 }
 
 /**
- * Retrieve img HTML content for an image to represent an attachment.
+ * Get an HTML img element representing an image attachment
  *
- * @see wp_get_attachment_image_src() Returns img HTML element based on array.
+ * @uses apply_filters() Calls 'wp_get_attachment_image_attributes' hook on attributes array
+ * @uses wp_get_attachment_image_src() Gets attachment file URL and dimensions
  * @since 2.5.0
  *
  * @param int $attachment_id Image attachment ID.
@@ -533 +534 @@
                 $hwstring = image_hwstring($width, $height);
                 if ( is_array($size) )
                         $size = join('x', $size);
-                $html = '<img src="'.attribute_escape($src).'" '.$hwstring.'class="attachment-'.attribute_escape($size).'" alt="" />';
+                $attachment =& get_post($attachment_id);
+                $attr = array(
+                        'src'   => $src,
+                        'class' => "attachment-$size",
+                        'alt'   => trim(strip_tags( $attachment->post_excerpt )),
+                        'title' => trim(strip_tags( $attachment->post_title )),
+                        );
+                $attr = apply_filters( 'wp_get_attachment_image_attributes', $attr, $attachment );
+                $attr = array_map( 'attribute_escape', $attr );
+                $html = rtrim("<img $hwstring");
+                foreach ( $attr as $name => $value ) {
+                        $html .= " $name=" . '"' . $value . '"';
+                }
+                $html .= ' />';
         }
 
         return $html;