Difference between add filter and add action wordpress
In this article we are going to discuss about difference between add filter and add action wordpress.
It is used to execute the specific function hooked on a add_action in WordPress core or in your theme or plugin. The function is same like echo. It will display the output of add_action.
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Function is used to hook a specific action in WordPress. You can add n number of action in WordPress theme and plugin but you cannot use same action cannot be written twice if same add_action it will give you error.
Add filter function is used to override the add_action hook for example if the add action is to display name A and you need to change it to B without removing the add_action then it can be achieved through add_filter(); in the add_filter you need to add the function for converting to B and added into add_filter.