[Solved] Identify the error in this PHP code snippet:<?php $counter++; echo $counter; ?> — Ans: Using $counter before initialization | PHP

PHP - Request Lifecycle

Identify the error in this PHP code snippet:

<?php
$counter++;
echo $counter;
?>

Asession_start() missing

BUsing $counter before initialization

CIncorrect variable name

DMissing semicolon after echo

Step-by-Step Solution

Solution:

Step 1: Check variable usage before assignment
$counter is incremented before being assigned any value, causing undefined behavior.
Step 2: Understand PHP variable initialization rules
Variables must be initialized before use; incrementing uninitialized variable is an error.
Final Answer:
Using $counter before initialization -> Option B
Quick Check:
Variable must be initialized before increment [OK]

Quick Trick: Initialize variables before using increment operators [OK]

Common Mistakes:

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