[Solved] What is wrong with this PHP code?<?php if ($_GET['id'] == 10) { echo 'ID is 10'; } ?>Assuming the URL does not have an 'id' parameter. | PHP

PHP - Superglobals and Web Context

What is wrong with this PHP code?

<?php
if ($_GET['id'] == 10) {
    echo 'ID is 10';
}
?>

Assuming the URL does not have an 'id' parameter.

ASyntax error in if statement

BIncorrect comparison operator

CMissing else statement

DAccessing undefined index 'id' in $_GET

Step-by-Step Solution

Solution:

Step 1: Check if 'id' exists in $_GET and accessing undefined index causes notice or warning
The URL lacks 'id', so $_GET['id'] is undefined. Directly using $_GET['id'] without checking causes an error.
Final Answer:
Accessing undefined index 'id' in $_GET -> Option D
Quick Check:
Undefined index access causes error [OK]

Quick Trick: Always check if key exists before accessing superglobals [OK]

Common Mistakes:

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What is wrong with this PHP code?