Hi

quick question ( i hope)
can you use fwrite to write to the end of a php document?
if not what could you use?
I am new to php, so if this is a dumb question i am sorry

yeah php can be used to write to any file.
should be carefull what is written to it though or you would be effectively letting people white thier own scripts on your server.

Originally Posted by stOx

yeah php can be used to write to any file.

using fwrite?

Originally Posted by stOx

should be carefull what is written to it though or you would be effectively letting people white thier own scripts on your server.

believe it or not, thats what i want

anouther thing...
fwrite adds the code to the end of the doc.
is there a way to add the content to anouther part of the doc? as in after line43 add content?

thanks

When you write to the file, you will first need to fopen() the file, and depending on which mode you use, it will place the file pointer (where it writes the file data) at different places.

"r+" will place the pointer at the beginning of the file if you want to write content at the top.

"a" will place the pointer at the end of the file if you want to write content at the end.

More on this at: http://us2.php.net/manual/en/function.fopen.php

If you want to go by line numbers, you can first read the file into an array by using file(). Each line will be an array element, but the array keys will start at 0. If you want to add content after line 43, you would have to referr to key number 42 (which would be line 43).

You can access specific parts in the page using the fseek methods.

http://uk.php.net/fseek

Ibbo

OK, This is very interesting. Let's say I have a text doc. And it has alot of content, lets say 300 lines. And I wanted just a portion of this text doc to be copied to another file. How do i set the pointer to lets say line 150 and copy the content to lets say line 200 and put it in another text file. Is this possible ?

Ibbo's suggestion would work, but here is how I would personally do it myself:

PHP Code:

<?php
  
  // Read the original text document into an array
  $file_contents = file('text_document.txt');
  
  $fwrite = '';
  for ($i = 0; $i < count($file_contents); $i++) {
    
    // Copy contents only on lines 150 - 200
    if ($i >= 149 && $i <= 199) $fwrite .= $file_contents[$i];
  }
  
  // Write content in new text file
  $fp = fopen('new_document.txt', 'w');
  fwrite($fp, $fwrite);
  fclose($fp);
  
?>

Very nice! I tested it. It works. Mgraphic, you know your php! I am learing so much here! The for statement makes sense to me. I guess there are other ways of achieving the same thing, I'm going to check out some other ways of doing this. Thanks again.

sure u can. just use fopen with the 'a' flag. stands for writing only, and the pointer is placed at the end of the file. so anything u frwrite, will be appended to that file.

http://us3.php.net/manual/en/function.fopen.php

woah that was weird, the forum showed me that were no replies... oh well