PHP - Superglobals and Web Context
What will be the output of this PHP code if a form sends
username=alice via POST?<?php echo 'Hello, ' . $_POST['username']; ?>
What will be the output of this PHP code if a form sends username=alice via POST?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the code output
The code concatenates 'Hello, ' with the value of$_POST['username'].Step 2: Check the POST data
The form sends username=alice, so$_POST['username']is 'alice'.Final Answer:
Hello, alice -> Option AQuick Check:
$_POST['username'] = alice, output = Hello, alice [OK]
Quick Trick: Echo $_POST['field'] to display submitted form data [OK]
Common Mistakes:
- Not sending POST data causes undefined index error
- Using single quotes around $_POST['username'] in echo
- Confusing $_POST with $_GET
Master "Superglobals and Web Context" in PHP
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore PHP Quizzes