[Solved] What will be the output of this PHP code?$file = fopen('test.txt', 'a');fwrite($file, "Hello\n");fclose($file);echo file_get_contents('test.txt'); | PHP

PHP - File Handling

What will be the output of this PHP code?

$file = fopen('test.txt', 'a');
fwrite($file, "Hello\n");
fclose($file);
echo file_get_contents('test.txt');

AHello

BEmpty output

CError: Cannot write to file

DolleH

Step-by-Step Solution

Solution:

Step 1: Understand the 'a' mode effect
Mode 'a' opens the file for appending, so "Hello\n" (string with actual newline) is added at the end.
Step 2: Check output of file_get_contents
It reads the whole file content including the newline, and echo prints it with the newline interpreted.
Final Answer:
Hello -> Option A
Quick Check:
"Hello\n" adds a newline, so output is Hello followed by newline [OK]

Quick Trick: Append adds 'Hello\n'; echo shows Hello with newline [OK]

Common Mistakes:

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