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--- type_error_thrown_call_user_function_array [2023/01/21 18:17] – created wikiadmin
+++ type_error_thrown_call_user_function_array [2023/01/22 22:24] (current) – wikiadmin
@@ Line 1: / Line 1: @@
+Windows Server 2019 with IIS 10, mod-rewrite and the following PHP Versions installed.
+The Website was initially using WordPress 6.0 and Twenty-Fourteen theme (having a child theme that enqueues a customer style.css add-in file that centers the theme's outer container, so that this left-justified theme is now center-justified on-screen).
+An instance of PHP 7.2.19 was Installed as the default PHP version for all websites on IIS, and I had Mapped the Module Fast-CGI.exe script of the PHP 7.2.19 instance with WordPress 6.0 and Twenty-Fourteen theme.
+When I tried to Install and Enable an instance of PHP 8.1.12, the website displayed the following error:
 TypeError thrown
 call_user_func_array(): Argument #1 ($callback) must be a valid callback, non-static method AKTT::controller() cannot be called statically
-This error occurs when I try to change from PHP 7.1.19 to PHP 8.1.12 while using WordPress Version 6.0.1 and PHP Version 8.1.12 with Theme Twenty-Fourteen.
+This error occurs when I try to change from PHP 7.2.19 to PHP 8.1.12 while using WordPress Version 6.0 and PHP Version 8.1.12 with Theme Twenty-Fourteen.
+The website and the backend were not viewable.
+I reverted the mapped fast_cgi.exe module (and Web.Config file) back to PHP 7.2.19 fast_cgi.exe and the website returned to normal display.
+I then installed and instance PHP 7.4 on the server and added fast-CGI module using PHP 7.4 Fast_CGI Executable in the same WordPress version 6.0 Site (which updated the Web.Config file to use PHP 7.4 fast-CGI script). The website using Twenty=Fourteen Theme continued to work normally on the front and back end.
+Then, I tried to update from Twenty-Fourteen Site from WordPress 6.0 to WordPress 6.1 and got a different fatal error during the automatic update.
+The website shows a blank white page with the following fatal error after update to wp 6.1
+fatal error:  function wp_get_attachment_thumb_file( $post_id = 0 )
+On further investigation, the php_errors.log for the PHP 7.4 instance contained the following error entry:
+[21-Jan-2023 22:02:13 UTC] PHP Fatal error:  Cannot redeclare wp_get_attachment_thumb_file() (previously declared in C:\hostingdata\site_user\public_html\site_domain_com\wp-includes\post.php:6709) in C:\hostingdata\site_user\public_html\site_domain_com\wp-includes\deprecated.php on line 4327
+Note that line 6709 in post.php file and line 4327 in deprecated.php file both contain the same function wp_get_attachment_thumb_file($post_id = 0)
-The website and the backend are not viewable.
+I was not about to edit the functions or delete anything.  So, I manually reinstalled WordPress 6.0, and the site came back online using the PHP 7.4 instance.