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There are two variables a, b which declared in global scope, which is the correct PHP statement to access them within a function?

21. There are two variables a, b which declared in global scope, which is the correct PHP statement to access them within a function?

1. global $a, $b;
2. global $a $b;
3. global ($a, $b);
4. php_global $a, $b;

Answer: A) global $a, $b;

Explanation:

The correct PHP statement to access them within a function is: global $a, $b;