PHP - Functions
You want to count how many times a function is called using a global variable. Which code correctly updates the global counter inside the function?
You want to count how many times a function is called using a global variable. Which code correctly updates the global counter inside the function?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Use global to access global variable
Inside the function, declareglobal $counter;to access the global variable.Step 2: Increment the global counter
Then increment it with$counter++;to count calls correctly.Final Answer:
global $counter; $counter++; -> Option CQuick Check:
Use global then increment to update global counter [OK]
Quick Trick: Declare global before modifying global variable inside function [OK]
Common Mistakes:
- Incrementing without global declaration
- Reinitializing global variable inside function
- Using incorrect global syntax
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