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What will be the output of this code snippet?

medium📝 Predict Output Q4 of 15
Wordpress - Custom Fields and Meta Data
What will be the output of this code snippet?
add_option('footer_text', 'Goodbye!');
update_option('footer_text', 'See you!');
echo get_option('footer_text');
ASee you!
BGoodbye!
CNotice: Undefined index 'footer_text' error
Dnull
Step-by-Step Solution
Solution:
  1. Step 1: add_option sets initial value

    add_option('footer_text', 'Goodbye!') adds the option with value 'Goodbye!'.
  2. Step 2: update_option changes the value

    update_option('footer_text', 'See you!') updates the existing option to 'See you!'.
  3. Step 3: get_option retrieves the current value

    get_option('footer_text') returns the updated value 'See you!'.
  4. Final Answer:

    See you! -> Option A
  5. Quick Check:

    Update overrides add_option value [OK]
Quick Trick: update_option overwrites add_option value [OK]
Common Mistakes:
  • Assuming add_option value remains after update_option
  • Expecting an error due to duplicate add_option

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