[Solved] Find the bug in this PHP code:$file = fopen('notes.txt', 'w'); fwrite($file, "Note 1"); // forgot fclose echo filesize('notes.txt'); | PHP

PHP - File Handling

Find the bug in this PHP code:

$file = fopen('notes.txt', 'w');
fwrite($file, "Note 1");
// forgot fclose
echo filesize('notes.txt');

Aecho should be before fwrite

Bfilesize returns 0 because file not closed

Cfopen mode incorrect

Dfwrite syntax error

Step-by-Step Solution

Solution:

Step 1: Notice missing fclose()
The file is not closed after writing, so data may be buffered.
Step 2: Understand filesize behavior
filesize returns 0 because the file system hasn't updated the file size yet.
Final Answer:
filesize returns 0 because file not closed -> Option B
Quick Check:
Missing fclose causes filesize = 0 [OK]

Quick Trick: Always fclose before filesize to get correct size [OK]

Common Mistakes:

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