WordPress WP_Query() Not working properly

I was having a similar error when using a WP_Query as given at https://wordpress.stackexchange.com/a/42334/16898. I replaced the variable name $posts with an arbitrary name $mposts and the error was gone.

wordpress featured image

What is happening is that your theme does not have support for featured image. What you need to do is add in the functions.php file of your theme the line : if (function_exists(‘add_theme_support’)) { add_theme_support( ‘post-thumbnails’ ); } and then you will be able to use featured image in your theme

Can’t get options with $data[‘variable’]

This is actually a PHP question, and not a WordPress question. The issue is that global variables don’t pass through the include()/require() call from the template file into header.php. The solution is to define $data after you globalize it. Without knowing your options framework or your Theme specifically, I can only answer in general terms; … Read more

How to recognize and remove malicious code on wordpress? [closed]

What this code can do actually in WordPress? This code allows arbitrary execution of PHP on your server. Deleting the file is enough to remove the problem? You’ll need to delete all files that contain backdoor like this. Look at every file on your system and compare it to the WordPress repository. In the last … Read more