Practice 50 PHP File Handling Programming Questions

Practice 50 PHP File Handling Programming Questions

Q1. Write a PHP script to create a new file named sample.txt.
 Input: None  
 Expected Output: File sample.txt created successfully.

Q2. Write a PHP script to write the text "Hello, World!" to a file named greeting.txt.
 Input: None  
 Expected Output: Text written successfully to greeting.txt.

Q3. Write a PHP script to read the contents of a file named info.txt and display it on the browser.
 Input: Contents of info.txt: This is a test file.  
 Expected Output: This is a test file.

Q4. Write a PHP script to append the text "Have a nice day!" to an existing file named note.txt.
 Input: Initial contents of note.txt: Good morning.  
 Expected Output: File note.txt updated successfully with content:  
    Good morning.
    Have a nice day!

Q5. Write a PHP script to check if a file named example.txt exists, and display a message accordingly.
 Input: File example.txt exists.  
 Expected Output: File example.txt exists.

Q6. Write a PHP script to delete a file named delete_me.txt.
 Input: None  
 Expected Output: File delete_me.txt deleted successfully.

Q7. Write a PHP script to create a directory named new_folder and create a file named newfile.txt inside it.
 Input: None  
 Expected Output: Directory new_folder and file newfile.txt created successfully.

Q8. Write a PHP script to copy a file named source.txt to destination.txt.
 Input: File source.txt contains Copy this content.  
 Expected Output: File destination.txt created with content:  
    Copy this content.

Q9. Write a PHP script to move a file named move_me.txt to a directory named archive.
 Input: File move_me.txt exists in the current directory.  
 Expected Output: File moved successfully to archive/move_me.txt.

Q10. Write a PHP script to count the number of words in a file named data.txt.
  Input: Contents of data.txt: PHP is a scripting language.  
  Expected Output: Word count: 5

Q11. Write a PHP script to list all files in a directory named my_folder.
  Input: Directory my_folder contains file1.txt, file2.txt, image.png.  
  Expected Output:       
     file1.txt
     file2.txt
     image.png

Q12. Write a PHP script to check if a file named readme.md is readable and writable.
  Input: File readme.md is readable and writable.  
  Expected Output:  
     File readme.md is readable.  
     File readme.md is writable.

Q13. Write a PHP script to display the file size of largefile.txt in bytes.
  Input: File largefile.txt size: 2048 bytes  
  Expected Output: File size: 2048 bytes

Q14. Write a PHP script to open a file named data.txt in read mode and display the first 10 characters.
  Input: Contents of data.txt: abcdefghij1234567890  
  Expected Output: abcdefghij

Q15. Write a PHP script to check the last modified time of a file named log.txt.
  Input: Last modified time: 2024-12-28 14:00:00  
  Expected Output: Last modified: 2024-12-28 14:00:00

Q16. Write a PHP script to create a log file named activity.log and append the current date and time to it.
  Input: None  
  Expected Output: File activity.log updated with content: 2024-12-29 12:34:56

Q17. Write a PHP script to read a file named numbers.txt and calculate the sum of all numbers in the file.
  Input: Contents of numbers.txt: 5 10 15  
  Expected Output: Sum: 30

Q18. Write a PHP script to read and display the first line of a file named lines.txt.
  Input: Contents of lines.txt:       
     First line
     Second line
     Third line
       
  Expected Output: First line

Q19. Write a PHP script to write an array of strings to a file named array.txt.
  Input: Array: ['One', 'Two', 'Three']  
  Expected Output: File array.txt contains:       
     One
     Two
     Three

Q20. Write a PHP script to split a file named content.txt into multiple files of 100 characters each.
  Input: Contents of content.txt: abcdefghijklmnopqrstuvwxyz1234567890 (repeated 5 times)  
  Expected Output: Multiple files created with 100 characters each.

Q21. Write a PHP script to display the file type of document.pdf.  
  Input: File document.pdf exists.  
  Expected Output: File type: application/pdf

Q22. Write a PHP script to rename a file named oldname.txt to newname.txt.  
  Input: File oldname.txt exists.  
  Expected Output: File renamed to newname.txt

Q23. Write a PHP script to read a CSV file named data.csv and display its contents as a table.  
  Input: Contents of data.csv:       
     Name,Age,City
     John,25,New York
     Jane,30,London
       
  Expected Output:  
     Name    Age    City
     John    25     New York
     Jane    30     London

Q24. Write a PHP script to count the number of lines in a file named lines.txt.  
  Input: Contents of lines.txt:  
     Line 1
     Line 2
     Line 3

  Expected Output: Number of lines: 3

Q25. Write a PHP script to check if a file named example.txt is executable.  
  Input: File example.txt is not executable.  
  Expected Output: File example.txt is not executable.

Q26. Write a PHP script to read a file named settings.ini and parse its key-value pairs.  
  Input: Contents of settings.ini:       
     host=localhost
     user=admin
     password=1234
       
  Expected Output:  
     host: localhost
     user: admin
     password: 1234

Q27. Write a PHP script to merge the contents of file1.txt and file2.txt into a new file named merged.txt.  
  Input:  
     - file1.txt: Hello  
     - file2.txt: World  
  Expected Output: File merged.txt contains:  
     
     Hello
     World

Q28. Write a PHP script to search for the word "PHP" in a file named programming.txt and display its line number.  
  Input: Contents of programming.txt:       
     Python is great.
     PHP is awesome.
     JavaScript is versatile.
       
  Expected Output: Word "PHP" found on line 2.

Q29. Write a PHP script to calculate the size of all files in a directory named my_files.  
  Input: Directory my_files contains:  
     - file1.txt: 500 bytes  
     - file2.txt: 1500 bytes  
  Expected Output: Total size: 2000 bytes

Q30. Write a PHP script to create a backup of a file named data.txt with a timestamp in the filename.  
  Input: None  
  Expected Output: File data_20241229.txt created successfully.

Q31. Write a PHP script to delete all .tmp files from a directory named temp_files.  
  Input: Directory contains file1.tmp, file2.tmp, and file3.txt.  
  Expected Output: All .tmp files deleted successfully.

Q32. Write a PHP script to compare two files, fileA.txt and fileB.txt, and display if their contents are identical.  
  Input:  
     - fileA.txt: Hello, World!  
     - fileB.txt: Hello, World!  
  Expected Output: Files are identical.

Q33. Write a PHP script to display the first 5 lines of a file named longfile.txt.  
  Input: Contents of longfile.txt:       
     Line 1
     Line 2
     Line 3
     Line 4
     Line 5
     Line 6
       
  Expected Output: 
     Line 1
     Line 2
     Line 3
     Line 4
     Line 5

Q34. Write a PHP script to reverse the contents of a file named reverse.txt.  
  Input: Contents of reverse.txt: abcd1234  
  Expected Output: File reverse.txt now contains: 4321dcba

Q35. Write a PHP script to calculate the frequency of each word in a file named words.txt.  
  Input: Contents of words.txt: PHP is easy. PHP is fun.  
  Expected Output:       
     PHP: 2
     is: 2
     easy: 1
     fun: 1

Q36. Write a PHP script to read the last 10 lines of a file named logfile.txt.  
  Input: Contents of logfile.txt:       
     Line 1
     ...
     Line 20

  Expected Output:  
     Line 11
     Line 12
     ...
     Line 20

Q37. Write a PHP script to display the owner of a file named myfile.txt.  
  Input: File myfile.txt owner: admin  
  Expected Output: File owner: admin

Q38. Write a PHP script to read a JSON file named data.json and convert it to an associative array.  
  Input: Contents of data.json:  
     json
     {
       "name": "Alice",
       "age": 25
     }
       
  Expected Output:       
     name: Alice
     age: 25

Q39. Write a PHP script to lock a file named secure.txt for exclusive access during writing.  
  Input: File secure.txt exists.  
  Expected Output: File locked and written successfully.

Q40. Write a PHP script to determine if a file named testfile.txt is a symbolic link.  
  Input: File testfile.txt is not a symbolic link.  
  Expected Output: File testfile.txt is not a symbolic link.

Q41. Write a PHP script to split a large text file named bigfile.txt into chunks of 1KB each.  
  Input: File size: 5KB  
  Expected Output: 5 files created, each 1KB in size.

Q42. Write a PHP script to fetch the MIME type of a file named image.jpg.  
  Input: File image.jpg exists.  
  Expected Output: MIME type: image/jpeg

Q43. Write a PHP script to determine if a directory named my_directory is empty.  
  Input: Directory my_directory contains no files.  
  Expected Output: Directory my_directory is empty.

Q44. Write a PHP script to list all hidden files in a directory named hidden_files.  
  Input: Directory contains .hidden1, .hidden2, and file.txt.  
  Expected Output:       
     .hidden1
     .hidden2

Q45. Write a PHP script to read a file named binaryfile.dat in binary mode and display the first 8 bytes.  
  Input: Contents of binaryfile.dat: 0x41 0x42 0x43 0x44 0x45 0x46 0x47 0x48  
  Expected Output: ABCD

Q46. Write a PHP script to calculate the MD5 hash of a file named hashme.txt.  
  Input: File contents: Hello, World!  
  Expected Output: MD5 hash: fc3ff98e8c6a0d3087d515c0473f8677

Q47. Write a PHP script to compress a file named data.txt into data.zip.  
  Input: File data.txt exists.  
  Expected Output: File data.zip created successfully.

Q48. Write a PHP script to extract files from archive.zip to a directory named extracted_files.  
  Input: archive.zip contains file1.txt and file2.txt.  
  Expected Output: Files extracted successfully to extracted_files.

Q49. Write a PHP script to create a temporary file and write "Temporary data" to it.  
  Input: None  
  Expected Output: Temporary file created and written successfully.

Q50. Write a PHP script to display the basename, dirname, and extension of a file path /var/www/html/index.php.  
  Input: File path: /var/www/html/index.php  
  Expected Output:  
     Basename: index.php
     Dirname: /var/www/html
     Extension: php