Changeset 48798 for trunk/src/wp-includes/media.php

Timestamp:

08/16/2020 01:31:57 PM (4 years ago)

Author:

SergeyBiryukov

Message:

Code Modernization: Introduce is_gd_image() to check for PHP 8 GdImage object instances.

In PHP 8, the GD extension uses GdImage objects instead of resources for its underlying data structures.

This updates the existing is_resource() calls for image resources in core to accomodate for GdImage instances as well.

Props ayeshrajans, jrf.
Fixes #50833.

File:

• trunk/src/wp-includes/media.php (modified) (1 diff)

trunk/src/wp-includes/media.php

@@ -3460 +3460 @@
  *
  * @param int $width  Image width in pixels.
- * @param int $height Image height in pixels..
- * @return resource The GD image resource.
+ * @param int $height Image height in pixels.
+ * @return resource|GdImage The GD image resource or GdImage instance.
  */
 function wp_imagecreatetruecolor( $width, $height ) {
     $img = imagecreatetruecolor( $width, $height );
-    if ( is_resource( $img ) && function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' ) ) {
+
+    if ( is_gd_image( $img )
+        && function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' )
+    ) {
         imagealphablending( $img, false );
         imagesavealpha( $img, true );
     }
+
     return $img;
 }