Bug #80342 [Nab]: is_resource returns false

Edit report at https://bugs.php.net/bug.php?id=80342&edit=1 ID: 80342 Updated by: cmb@php.net Reported by: info at backups dot nl Summary: is_resource returns false Status: Not a bug Type: Bug Package: *General Issues Operating System: ubuntu server PHP Version: 8.0.0RC3 Block user comment: N Private report: N New Comment: Instead of if ( !is_resource( $image ) ) use if ( $image === false ) for compatibility with "all" PHP versions. Previous Comments: ------------------------------------------------------------------------ [2020-11-09 12:55:18] jhdxr@php.net This is intended. In php 8.0 a lot of resource has been converted into objects. see https://github.com/php/php-tasks/issues/6, and https://github.com/php/php-src/pull/4714 for your case. ------------------------------------------------------------------------ [2020-11-09 12:48:43] info at backups dot nl Description: ------------ I am using the code below. in php 8.0 is_resource returns false on this code. I can rewrite that code of course but i want to understand why it now suddenly does not work anymore. Is this a bug or is this caused by the changes made in php 8.0? Please advice Thank you ! Test script: --------------- $file= '/var/public/wp-content/uploads/2020/11/image_001.jpg'; $image = imagecreatefromstring( file_get_contents( $file ) ); if ( !is_resource( $image ) ) return new WP_Error( 'error_loading_image', $image, $file ); ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=80342&edit=1