You want to append a new line "New entry" to an existing file "log.txt" without deleting its current content. Which PHP code snippet correctly does this?

hard📝 Application Q15 of 15

PHP - File Handling

A$file = fopen('log.txt', 'a'); fwrite($file, "New entry\n"); fclose($file);

B$file = fopen('log.txt', 'w'); fwrite($file, "New entry\n"); fclose($file);

C$file = fopen('log.txt', 'r'); fwrite($file, "New entry\n"); fclose($file);

D$file = fopen('log.txt', 'x'); fwrite($file, "New entry\n"); fclose($file);

Step-by-Step Solution

Solution:

Step 1: Understand file open modes for appending
Mode 'a' opens the file for writing at the end, preserving existing content.
Step 2: Check other modes' effects
'w' overwrites the file, 'r' is read-only, 'x' creates new file and fails if exists.
Final Answer:
$file = fopen('log.txt', 'a'); fwrite($file, "New entry\n"); fclose($file); -> Option A
Quick Check:
Append mode = 'a' [OK]

Quick Trick: Use 'a' mode to add without erasing file content [OK]

Common Mistakes:

Using 'w' mode which erases existing content
Trying to write in 'r' mode causing errors
Using 'x' mode which fails if file exists

Master "File Handling" in PHP

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More PHP Quizzes

You want to append a new line "New entry" to an existing file "log.txt" without deleting its current content. Which PHP code snippet correctly does this?

Step 1: Understand file open modes for appending

Step 2: Check other modes' effects

Final Answer:

Quick Check:

Want More Practice?