fpassthru()

[sheraz]

hi i m working on fie handling. i have used fpassthru() to read the data froma file . it outputs the contents of file but at the end it also prints total number of characters. please tell me what the problem is.

 

here is the code.

 

if(! $fp=fopen("abc.txt", "r"))

 

die("could not find the required file");

else

{

echo fpassthru($fp);

}

?>

 

its output is

 

welcome to php programming.we are working on the php file handling. 68

 

[ram4nd]

http://us.php.net/manual/en/function.fpassthru.php read how the command works

[RussellReal]

I'm GUESSING fpassthru returns the strlen of the string but outputs the contents inside the function not returns the value of the string.

[sheraz]

http://us.php.net/manual/en/function.fpassthru.php read how the command works

 

sir if it only return the total number of readed characters then i don't understand that why it is returning the file contents.

[bundyxc]

Consider this:

 

function helloWorld() {
    print('Hello World!');
    return 'PHP is awesome!';
}

$return = helloworld(); //This will execute the helloWorld function, print "Hello World!", and set $return.
print('<br />');        //Line break, just for the sake of formatting.
print($return);         //This will print the return of the helloWorld function, and echo 'PHP is awesome!';

 

This code would return:

 

Hello World!

PHP is awesome!

 

What a function does, and what a function returns are two completely seperate things.

 

Try this code instead:

 

<?php
if (!fopen('abc.txt', 'r')) {
    die('Could not find the required file.');
}
?>

[sheraz]

ok Thanks sir, i m very thankful to u.