Writing files (fwrite, file_put_contents) in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to open a file for writing.

PHP

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

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

Aw

Bx

Ca

Dr

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'r' which opens the file for reading only.

Using 'a' which appends instead of overwriting.

The mode 'w' opens the file for writing and truncates the file to zero length or creates it if it doesn't exist.

2fill in blank

medium

Complete the code to write the string 'Hello World' to the file using fwrite.

PHP

<?php
$file = fopen('example.txt', 'w');
fwrite([1], 'Hello World');
fclose($file);
?>

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

A$fp

B$filename

C$handle

D$file

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable that does not hold the file handle.

Using the filename string instead of the file handle.

The variable $file holds the file handle returned by fopen, which is needed by fwrite.

3fill in blank

hard

Fix the error in the code to write 'Data' to a file using file_put_contents.

PHP

<?php
[1]('data.txt', 'Data');
?>

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

Afile_put_contents

Bfile_write

Cwrite_file

Dput_file_contents

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-existent functions like file_write or write_file.

Mixing up the function name order.

The correct function to write data to a file in one call is file_put_contents.

4fill in blank

hard

Fill both blanks to write 'Hello' to 'greeting.txt' and then close the file.

PHP

<?php
$file = fopen('greeting.txt', '[1]');
fwrite($file, '[2]');
fclose($file);
?>

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

Aw

Br

CHello

DWorld

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'r' mode which is read-only.

Writing the wrong string like 'World'.

Use 'w' mode to open the file for writing and 'Hello' as the string to write.

5fill in blank

hard

Fill all three blanks to write the uppercase filename, the content variable, and the comparison operator in the code.

PHP

<?php
$filename = 'log.txt';
$content = 'Log entry';
if (strlen($content) [3] 0) {
    file_put_contents([1], [2]);
}
?>

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

A$filename

B$content

C>

DLOG.TXT

Attempts:

3 left

💡 Hint

Common Mistakes

Using the uppercase string 'LOG.TXT' instead of the variable.

Using '<' instead of '>' in the condition.

Use $filename as the file name, $content as the data to write, and '>' to check if content length is greater than zero.