[Solved] What will the following PHP code output?<?php $_POST['user'] = 'Bob'; echo isset($_POST['user']) ? $_POST['user'] : 'Guest'; ?> | PHP

PHP - Superglobals and Web Context

What will the following PHP code output?

<?php
$_POST['user'] = 'Bob';
echo isset($_POST['user']) ? $_POST['user'] : 'Guest';
?>

ANotice error

BBob

CGuest

DEmpty string

Step-by-Step Solution

Solution:

Step 1: Check if 'user' key exists in $_POST and output the value if set, else 'Guest'
The code sets $_POST['user'] to 'Bob', so isset($_POST['user']) returns true. Since 'user' is set, echo outputs 'Bob'.
Final Answer:
Bob -> Option B
Quick Check:
isset($_POST['user']) = true, output = 'Bob' [OK]

Quick Trick: isset checks if key exists before accessing [OK]

Common Mistakes:

Master "Superglobals and Web Context" in PHP

9 interactive learning modes - each teaches the same concept differently

More PHP Quizzes

What will the following PHP code output?