[Solved] What will be the output of this PHP code?$count = 5;function increment() { global $count; $count++;}increment();echo $count; | PHP

PHP - Request Lifecycle

What will be the output of this PHP code?

$count = 5;
function increment() {
  global $count;
  $count++;
}
increment();
echo $count;

A5

BNothing is printed

CError: Undefined variable

D6

Step-by-Step Solution

Solution:

Step 1: Understand the global keyword usage
The function declares global $count; which means it uses the global variable $count defined outside.
Step 2: Trace the code execution
The global $count starts at 5, the function increments it by 1, so $count becomes 6. Then echo $count; prints 6.
Final Answer:
6 -> Option D
Quick Check:
Global increment changes $count to 6 [OK]

Quick Trick: Global keyword lets function modify external variable [OK]

Common Mistakes:

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