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We moved my website (wietse.org) using Duplicator to a new host. The site is accessible and works perfectly, only when trying to access /wp-login.php it gives a 404.

Just enabled debugging mode, this is what error it gives:

Warning: Illegal string offset ‘remember’ in /www/wp-includes/user.php on line 41 Warning: Cannot assign an empty string to a string offset in /www/wp-includes/user.php on line 41 Warning: Illegal string offset ‘user_login’ in /www/wp-includes/user.php on line 56 Fatal error: Uncaught Error: Cannot create references to/from string offsets in /www/wp-includes/user.php:56 Stack trace: #0 /www/wp-login.php(806): wp_signon(”, ”) #1 {main} thrown in /www/wp-includes/user.php on line 56

Looked at many of the previous forum posts on similar issues but to no avail. Any help much appreciated!

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  • Try to upload wp-includes folder to New hosting. Dec 22, 2017 at 16:13
  • 1
    What are your old and new wp and php versions? Any differences between them? Dec 22, 2017 at 16:45
  • are you using any new plugin?
    – inarilo
    Dec 22, 2017 at 21:19

2 Answers 2

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I know this thread is a little bit old, but as I spent 3 days installing, "up/down" VPS and searching Google, today I could find an answer to this error.

On your WordPress installation root folder, find and open wp-login.php file.

Search for the line $user = wp_signon('', $secure_cookie); and replace the empty string ' ', for array().

The line should now be $user = wp_signon(array(), $secure_cookie);

That's it!

Source: https://core.trac.wordpress.org/attachment/ticket/37071/fix-wp-login-error.patch

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  • worked for me, on old WP 4.3.1
    – cucu8
    Feb 4, 2022 at 9:09
  • This also worked for me on WP 4.2.33. Sep 25, 2022 at 22:07
-1
   $user = wp_signon( '', $secure_cookie )

Fix the above line and rewrite it as: $user = wp_signon( array(), $secure_cookie ); I hope that works

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