Fseek Function not working !!!!

Code:

<?php
$ourFileName="newfile.txt";
$fh = fopen($ourFileName, 'a+') or die("Can't open file");
echo " File opened: ".ftell($fh);
fwrite($fh,"<image></image>");
fseek($fh,-8,SEEK_END);
fwrite($fh,"Data Written");
fclose($fh);
?>

Whats wrong here?
Its output is as follows:

Code:

<image></image>Data Written

Where as expected output is:

Code:

<image>Data Written</image>

Any Suggestions?

 

Even after closing the file, output is same. I just forgot to put fclose here. In file, I am using that one. I have edited the post.

More over, whenever I re-run the PHP page, it should return the current pointer position which should be the at the end here. But ftell function returns 0 everytime, whether text file has data or not.

 

Sir if so , why ftell() function is always resulting 0 whenever it is re-opened. It should give the last point from where it has to start writing. Moreover I am using fseek() function to move the pointer to -8 from end-of-file.

 

In this case, how can we edit a text file instead of just writing the data at the end of the file?

 

Ok. I used r+ and added some more logic to it.

Code:

<?php

$ourFileName="newfile.txt";

if(is_file($ourFileName))
	$fh = fopen($ourFileName, 'r+') or die("Can't open file");
else
	$fh = fopen($ourFileName, 'w') or die("Can't open file");

fwrite($fh,"<image></image>");
fseek($fh,-8,SEEK_END);
fwrite($fh,"Data Written");
fclose($fh);

?>

But still I am not getting expected result.
now the result is as follows:

Code:

<image>Data Written

[/code]

 

Okay sir ! Thanks.