[Solved] What will this PHP code output?$file = fopen('log.txt', 'a'); fwrite($file, "Test\n"); fclose($file); echo filesize('log.txt'); | PHP

PHP - File Handling

What will this PHP code output?

$file = fopen('log.txt', 'a');
fwrite($file, "Test\n");
fclose($file);
echo filesize('log.txt');

AError because file is closed

B0

CSize of file including new 'Test' line

DTest

Step-by-Step Solution

Solution:

Step 1: Understand append mode and fwrite
Opening with 'a' appends "Test\n" to the file, increasing its size.
Step 2: Recognize filesize after fclose
After closing, filesize reflects the updated file size including the new content.
Final Answer:
Size of file including new 'Test' line -> Option C
Quick Check:
filesize after fclose = updated size [OK]

Quick Trick: Use 'a' mode to append and see updated filesize after fclose [OK]

Common Mistakes:

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