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What is wrong with this code snippet if the goal is to remove the filter modify_title with callback change_title?

medium📝 Debug Q14 of 15
Wordpress - WordPress Hooks System
What is wrong with this code snippet if the goal is to remove the filter modify_title with callback change_title?
add_filter('the_title', 'change_title', 5);
remove_filter('the_title', 'change_title', 10);
APriority missing in add_filter causes remove_filter to fail
Bremove_filter must be called before add_filter
CCallback function name should be in double quotes
DPriority must be the same in both add_filter and remove_filter
Step-by-Step Solution
Solution:
  1. Step 1: Check priority in add_filter

    The add_filter call uses priority 5.
  2. Step 2: Check priority in remove_filter

    The remove_filter specifies priority 10, which does not match.
  3. Step 3: Priority must match

    To successfully remove the filter, the priority values must be identical.
  4. Final Answer:

    Priority must be the same in both add_filter and remove_filter -> Option D
  5. Quick Check:

    Matching priority needed to remove hook [OK]
Quick Trick: Priority must match exactly to remove hooks [OK]
Common Mistakes:
  • Ignoring priority parameter
  • Calling remove_filter before add_filter
  • Using wrong quotes around function name

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