CODEWITHSUNDEEP
phpreadfile
quant
quant

Reputation: 512

readfile returns additional digit

I am PHP beginner. I am trying to readfile that is saved on a local machine. I have connection, I can read the file but PHP keeps providing with additional digit.

This is my code

<html>
    <body>
        <h1>My first PHP page</h1>
        <?php
            echo readfile("/home/pi/test/hx711py/export.txt", "r");
        ?>
    </body>
</html>

On the other side the file is very simple it contains only number "10". So the output should be just number 10, but I keep getting 10 3.

This is the output on web interface:

enter image description here

This is the file I am trying to read:

enter image description here

Upvotes: 1

Views: 1567

Answers (2)

vikramj74
vikramj74

Reputation: 41

Documentation for "readfile" function from PHP.net says :

readfile
Returns the number of bytes read from the file. If an error occurs, FALSE is returned and unless the function was called as @readfile(), an error message is printed.

Source : http://php.net/manual/en/function.readfile.php

If you want to read the contents of a file and get the result as a string use the file_get_contents function.

Documentation for "file_get_contents" function is available here : http://php.net/manual/en/function.file-get-contents.php

Upvotes: 1

bassxzero
bassxzero

Reputation: 5041

http://php.net/manual/en/function.readfile.php

readfile() automatically echos the file's contents, so you don't need to use echo.

readfile() also returns an int and that's the 3 you are seeing.

Change your code to this.

<html>
<body>
<h1>My first PHP page</h1>
<?php
readfile("/home/pi/test/hx711py/export.txt", "r");
?>
</body>
</html>

Upvotes: 5

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