[Resolved] append the second last line

jassh

hi guys...

just wondering...
how do i append data to a text file...
but i want the last line to remain...
and i want to write from the scond last line onwards..

here's an illustration of the case

the text file content:

-start-

Name : jassh
Age : 20

Name : CGraz
Age : Unknown

-end-

ok, so how do i write so that it my form will write before the "-end-"

i'm surrently using :

$line = "Name : My name";
$line .= "\r\n";
$line .= "Age : My Age";

$fp = fopen('mytext.txt','a');

fwrite($fp, $line);

Can Anyone help me with this..

thanks in advanced

-jassh

bad76

Hi,
you can move in the file with fseek() function.

Move 5 from the end of file (just "-end-" char...)
and write your info. At last rewrite any "-end-" string...

see you

jassh

how do i move 5 to the end of file bad76?

can u explain a bit further??

bad76

Yes.
When we open any handle to a file we get a cursor. Wen you fopen with "a" this will moved to end. If you open with "w" it is at the start.

Well, all that you have to do is to move this cursor with fseek() function back before "-end-" string, just 5 char (may be 6/7 for any return or end-of-line code, you must try...) and write your line, after adding "-end-" too:

...
$line .= "Age : My Age";
$line .= "\n-end-";
...

For more info on fseek() look at this

http://www.php.net/manual/en/function.fseek.php

see you

jassh

there is not enuff example in fseek() at php.net

can u explain further...

i used fseek
but it seems not be able to set the cursor before the "-end-"
and i cant use a mode or a+
i can only use r+, which set the cursor at the BOF

can you help me to elaborate fseek using SET_CUR

and by the way,
one other solution that i can think of is by counting
the amount of charachter inside,
perhaps i can use :

$subtract = $total_char - 5 //since -end- = 5 char
fseek($fp, $subtract, SEEK_CUR);
[/code


but i need to know how to check the amount of char in a text file

thanks in advanced

bad76

🙁 try just
fseek($fp, -5, SEEK_END);

HalfaBee

If you want to write to a line before the last line, you are probably better off reading in the whole file and inserting the row and writing out the whole file.

$lines = file( mytext.txt );
$last_line = array_pop( $lines );
$lines[]  = $newline."/n";
$lines[] = $last_line;

// write out the file here

HalfaBee

jassh

thanks bad76..

sorry to take ur time..
i really appreciate it... 🙂

have a nice day 😃

jassh

owh,, and u too mr halfabee... 😃

HalfaBee

No problem 🙂

My solution works regardless of line size. 🙂

HalfaBee