CODEWITHSUNDEEP
php
Hash
Hash

Reputation: 566

readfile function is printing non-existent number after the contents

I wrote a simple single liner PHP program to output contents of a file. The HTML code is:

<form action="output.php">
<input type="submit" value="submit">
</form>

output.php file:

<?php
echo readfile("text.txt");
?>

text.txt file:

hi hello

hexdump of text.txt file:

enter image description here

there is 0000008 in the end but in the utf-8 format i don't think 08 corresponds to the character '8'

But in the browser when i click the submit button the output is:

hi hello8

I don't know where the 8 came from. how can i solve this issue to print "hi hello" not "hi hello8"

Upvotes: 1

Views: 169

Answers (1)

Dharman
Dharman

Reputation: 33238

readfile() returns the number of bytes read on success. So in your case the file contains 8 bytes.

readfile() will output the contents of the file, so I assume your mistake here was to assume that it will return the contents and you need to echo them yourself, but that is what file_get_contents() does

Upvotes: 1

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