[Solved] Identify the error in this code: $parts = explode(';', 'apple;banana;orange'); echo $parts[3]; — Ans: Undefined offset error because index 3 does not exist | PHP

PHP - String Functions

Identify the error in this code:

$parts = explode(';', 'apple;banana;orange');
echo $parts[3];

ASyntax error in explode() usage

BUndefined offset error because index 3 does not exist

CDelimiter should be comma, not semicolon

Dexplode() returns string, not array

Step-by-Step Solution

Solution:

Step 1: Check explode() result array size
Splitting 'apple;banana;orange' by ';' gives 3 elements at indexes 0,1,2.
Step 2: Accessing index 3 causes error
Index 3 does not exist, so PHP throws undefined offset notice.
Final Answer:
Undefined offset error because index 3 does not exist -> Option B
Quick Check:
Accessing non-existent array index causes error [OK]

Quick Trick: Array indexes start at 0; check length before access [OK]

Common Mistakes:

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