Reading files (fread, fgets, file) in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to open a file for reading.

PHP

<?php
$handle = fopen('example.txt', '[1]');
?>

Drag options to blanks, or click blank then click option'

Ax

Ba

Cr

Dw

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' which opens the file for writing and truncates it.

Using 'a' which opens the file for appending.

The mode 'r' opens the file for reading only.

2fill in blank

medium

Complete the code to read 100 bytes from the file.

PHP

<?php
$handle = fopen('example.txt', 'r');
$content = fread($handle, [1]);
fclose($handle);
?>

Drag options to blanks, or click blank then click option'

A0

B100

C200

D50

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 which reads nothing.

Using a smaller number like 50 which reads less than needed.

fread reads the specified number of bytes; here, 100 bytes.

3fill in blank

hard

Fix the error in the code to read one line from the file.

PHP

<?php
$handle = fopen('example.txt', 'r');
$line = [1]($handle);
fclose($handle);
?>

Drag options to blanks, or click blank then click option'

Afgets

Bfread

Cfile_get_contents

Dreadfile

Attempts:

3 left

💡 Hint

Common Mistakes

Using fread which reads bytes, not lines.

Using file_get_contents which reads the whole file.

fgets reads one line from the file handle.

4fill in blank

hard

Fill both blanks to read the entire file into an array of lines and print the first line.

PHP

<?php
$lines = [1]('example.txt');
[2] $lines[0];
?>

Drag options to blanks, or click blank then click option'

Afile

Bprint_r

Cecho

Dfgets

Attempts:

3 left

💡 Hint

Common Mistakes

Using fgets instead of file to read all lines.

Using print_r which prints array structure, not just the line.

The file function reads the file into an array of lines. echo prints the first line.

5fill in blank

hard

Fill all three blanks to open a file, read its entire content, and close it.

PHP

<?php
$handle = [1]('example.txt', 'r');
$content = [2]($handle, filesize('example.txt'));
fclose([3]);
?>

Drag options to blanks, or click blank then click option'

Afopen

Bfread

C$handle

Dfile_get_contents

Attempts:

3 left

💡 Hint

Common Mistakes

Using file_get_contents instead of fread when a handle is used.

Not closing the file handle.

Use fopen to open the file, fread to read the content, and fclose to close the file handle.