php - Query string is empty always in wordpress -


I want to hide some content on the wp page, for example depending on the query string 

 < Code> site / article / name /? Nosidebar = 1   
 I use $ _GET ['nosidebar'] to view the property value. It works on the local server, but the $ _GET array is empty all time on the remote server. I tried to add custom code to the public properties via the following code:   $ global ['wp '] - & gt; Add_query_var ('nobsidebar');   
 But still the idea of ​​what a get_query_var ( 'nosidebar') and $ _GET [ 'nosidebar'] still nothing to return to why this happens and how do I solve it Can i   
 
 
 You can use the add_query_arg simple () function in WordPress  
 example To:  
  & lt ;? Php add_query_arg ('foo', 'bar'); ? & Gt;   
 The above code will detect some links  
  output / client /? S = word & amp; To get the variable back to foo = bar '  
, use another WordPress function  
  & lt ;? Php $ variable = get_query_var ('foo'); ? & Gt;   
 In the above case the value of $ variable will be 'bar'

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