PHP - File Handling
You want to check if a file 'data.csv' exists, is readable, and its size is greater than 0 bytes before processing it. Which PHP code correctly performs all these checks?
You want to check if a file 'data.csv' exists, is readable, and its size is greater than 0 bytes before processing it. Which PHP code correctly performs all these checks?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Combine all required checks with AND
We need to ensure the file exists, is readable, and size is greater than zero, so use && between conditions.Step 2: Verify each function usage
file_exists() checks existence, is_readable() checks read permission, filesize() > 0 checks size positive.Final Answer:
if (file_exists('data.csv') && is_readable('data.csv') && filesize('data.csv') > 0) { echo 'Ready'; } -> Option BQuick Check:
All conditions combined with AND for file readiness [OK]
Quick Trick: Use && to combine all file checks correctly [OK]
Common Mistakes:
- Using || instead of &&
- Checking filesize == 0 instead of > 0
- Using is_dir() for files
Master "File Handling" in PHP
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore PHP Quizzes