How do you move the file pointer?

[fishfin]

OK, I want to read some lines from a .txt file.

 

I know that fgets() gets the line that the file pointer is on but I don't know how to move the pointer? What would be the easiest way to move the pointer down a line?

[ronnie88]

something like this, you can try it idk if it works just typed it

 

<?php
function readLine( $desiredLine, $handle, $length=1024 )
{
if ( !$handle )
echo 'not a valid handle.';

$ctr = 0;

while ( $ctr!=$desiredLine )
{
$line = fgets( $handle, $length );
if ( feof($handle) )
{
$line = 'error: invalid line number';
break;
}
$ctr++;
}

echo $line;
}
?>

[Third_Degree]

http://php.net/fseek

http://php.net/rewind

[fishfin]

So there is no easy way just to move up and down a line?

[Third_Degree]

well if you open the file with the file() function, moving around an array is easy...