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1. freeriders
   Member
   Posted 5 months ago #

   Greetings

   I'm trying to play wit hthe add_filter function

   I did my homework reading
   http://codex.wordpress.org/Function_Reference/add_filter

   but I face a problem when I want to pass more than one argument to the function that is target

   I have a function as such
   

   function populate_dropdown_destinations($form,$formID,$titleRemove,$sport_category){
   
   here some code execution ....
   }

   I call it by
   add_filter("admin_pre_render", "populate_dropdown_destinations",10,4);

   but I have hard time to find where I put the $formID,$titleRemove,$sport_category values for those variable

   I have try

   apply_filters( ‘populate_dropdown_destinations’, $form, 2, '-test', 'test');

   but that is firing a big error

   any idea where I can find some ressource to learn how to deal with added argument at the add-filter stage

   thank you in advance

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