Write to file,

Anon

How can i get php to write to a text file and tell it what line to write this script to,

By default seams to blank out the miltiline database file, and just put this line on line 1,
Var of line is $number in the scripts

Anon

If you want to add lines to the end of the file, use append mode, not write mode:

$fp = fopen ("$filename", "a");

If you want to insert lines in the middle of files, you'll have to do open the file up in read mode "r", step through the file and throw each line into a variable. When you get to the line where you want your newly inserted data, put that line in first, then continue stepping through the file, adding line after line.

Then open the file in write "w" mode and re-write the file.

Anon

Go here: <a href='http://php.net/manual/function.fopen.php'>http://php.net/manual/function.fopen.php</a> for a description of the different modes fopen has and what they do.

Anon

I think you misunder stood me, (or i am not clear)
I mean i want to tell it what line to write to
I.,E

Line 3
THEN it puts the info in to line 3

Line VAR is $number

Anon

You can't just explicitly tell it to write to a file. If you're not worried about losing any other data in a file (if you want line 3, then lines 1, 2, and 4+), then you could just add "\n"'s for each line that you want to go down.

If you do need to preserve other lines in the file, then you need to do as I said in my previous post.

Anon

The first line should state, "write to a specific line", not "write to a file".

Anon

Well Whats the comming to write to line X then ?
I am not in to php much so show me what you mean

Anon

Well i have taken that idea to ADDnew lines,,,
BUT this one i need to write to line X
(for a edit page thats why i need it to be that line)

The bit i need is the bit where it says what line to write it to,
I have done the rest

Anon

Sorry, here's an example, say you have a file called "test.txt" with these lines:

First line
Second Line
Third Line

And you want to replace the second line with "New Second Line".

<?
$new_data = "New Second Line"; //variable with new data in it.
$current_line = 0; //to keep track of the line we're on
$write_line = 2; //line we want to write to
$contents = ""; //variable to store the new file contents in.

$fp = fopen ("test.txt", "r"); //open for reading
while ($data = fgets($fp, 4096)) //This just get's one line of data.
{
$current_line++;
if ($current_line == $write_line)
{
$contents .= $new_data."\n"; //put in the new data for this line (change the "\n" to "\r\n" if you're on a windows machine)
} else {
$contents .= $data; //keep the old data for this line
}
}
fclose($fp);

//now write over the file with the new contents
$fp = fopen("test.txt", "w");
fputs($fp, $contents);
fclose($fp);
?>

And then the new "test.txt" will be:

First line
New Second Line
Third Line

Hope that helps. This is what I tried explaining in the first message.