PHP Exercises: Get the size of a file

PHP: Exercise-39 with Solution

Write a PHP program to get the size of a file.

Sample Solution:

PHP Code:

<?php
// Open a file "/home/students/ppp.txt" for writing, or display an error message if unable to open
$myfile = fopen("/home/students/ppp.txt", "w") or die("Unable to open file!");

// Text to be written to the file
$txt = "PHP Exercises\n";
// Write the first line to the file
fwrite($myfile, $txt);

// Additional text to be written to the file
$txt = "from\n";
// Write the second line to the file
fwrite($myfile, $txt);

// More text to be written to the file
$txt = "w3resource\n";
// Write the third line to the file
fwrite($myfile, $txt);

// Close the file after writing
fclose($myfile);

// Display the size of the created file "/home/students/ppp.txt"
echo "Size of the file: " . filesize("/home/students/ppp.txt") . "\n";
?>

Explanation:

• Open the File:
• fopen("/home/students/ppp.txt", "w") opens the file ppp.txt in write mode.
• If the file cannot be opened, die("Unable to open file!") displays an error message.
• Write Text to the File:
• fwrite($myfile, $txt) writes text to the file.
• Three different strings ("PHP Exercises\n", "from\n", and "w3resource\n") are written to the file in separate fwrite calls.
• Close the File:
• fclose($myfile) closes the file after writing.
• Display File Size:
• filesize("/home/students/ppp.txt") gets the size of the file.
• The size is printed with "Size of the file: ".

Output:

Size of the file: 30        

Flowchart:

PHP Code Editor:

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