Error opening wp-admin (5 posts)

  1. stenaols
    Posted 3 years ago #

    Hi. When opening wp-adming I get this error:

    Notice: Undefined offset: 1 in /home3/mytosno/public_html/wp-content/themes/mytos/classes.php on line 74

    Warning: Cannot modify header information - headers already sent by (output started at /home3/mytosno/public_html/wp-content/themes/mytos/classes.php:74) in /home3/mytosno/public_html/wp-includes/pluggable.php on line 881

    I have deactivated all plugins, but still get the error.

    Any ideas?


  2. s_ha_dum
    Posted 3 years ago #

    It is in your theme-- "wp-content/themes/mytos/classes.php" on line 74. It is a non-fatal error so it should work with define('WP_DEBUG',false); as it should be on a live site. It should also be an easy proper fix if you want to paste lines 70-80 or so of "wp-content/themes/mytos/classes.php".

  3. stenaols
    Posted 3 years ago #

    Hi. Here is lines 70 - 80:

    $this->user->active_blog = get_active_blog_for_user( get_current_user_id() );
    			$this->user->domain = empty( $this->user->active_blog ) ? user_admin_url() : trailingslashit( get_home_url( $this->user->active_blog->blog_id ) );
    			$this->user->account_domain = $this->user->domain;
    		} else {
    			$this->user->active_blog = $this->user->blogs[get_current_blog_id()];
    			$this->user->domain = trailingslashit( home_url() );
    			$this->user->account_domain = $this->user->domain;
    		$this->user->locale = get_locale();
    		add_action( 'wp_head', 'wp_admin_bar_header' );
  4. stenaols
    Posted 3 years ago #

    Hi again. Changed WB_DEBUG to false, and then it worked!. Thanks a lot!

  5. s_ha_dum
    Posted 3 years ago #

    Yes, it works but it isn't fixed.

    The problem is here: $this->user->active_blog = $this->user->blogs[get_current_blog_id()];

    That last bit of the object 'blogs' should be an array that looks something like this (illustrative only):

      '1' => 'aaa',
      '2' => 'bbb',
      '3' => 'ccc

    If get_current_blog_id() is 1, 2, or 3 everything is fine. If it is 0, or greater than 3 you get that error. You are trying to access an array key that doesn't exist. That is what 'undefined offset' means in this context. The code should check for the existence of that array key before trying to use it, as is done on the second line of the code you posted.

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