[Solved] Identify the error in this PHP code:$text = "Hello World";echo substr($text, 5, -3); — Ans: No error, code runs fine | PHP

PHP - String Functions

Identify the error in this PHP code:

$text = "Hello World";
echo substr($text, 5, -3);

AStart index 5 is out of range

BNegative length is invalid in substr

CMissing third parameter in substr

DNo error, code runs fine

Step-by-Step Solution

Solution:

Step 1: Recall substr length behavior
PHP substr supports negative length: it omits that many characters from the end of the string (after the start position).
Step 2: Analyze the code
substr($text, 5, -3) on "Hello World" (len 11) starts at index 5 (' ') and omits 3 chars from end, outputting " Wo". No error.
Final Answer:
No error, code runs fine -> Option D
Quick Check:
Negative length omits from end, code runs [OK]

Quick Trick: Negative length in substr omits chars from end [OK]

Common Mistakes:

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