Write Variable to a File

Anon

I have a html form that I would like to write the value to a php page.
here is my code.
<form name="form1" method="post" action="save.php">
Table Color 1
<input type="text" name="tabcolor">
<input type="submit" name="Submit" value="Submit">
</form>
this get passed to save.php
here is the code for that
<?
$filelocation ="myadmin.php";
$newfile = fopen($filelocation,"w");
fwrite($newfile, $tabcolor);
fclose($newfile);
?>
and here is myadmin.php
<?
$tabcolor="#06589F";
$TABLECOLOR1 = $tabcolor ;
?>
now what is happening is it overwrites everything in the file. What I want to to do is only replace the value of $tabcolor with the new value that I entered in the form. I am pretty sure it is a easy fix. I am new to php so any help would be greatly appreciated.

Anon

from the manual:
'w' - Open for writing only; place the file pointer at the beginning of the file and truncate the file to zero length. If the file does not exist, attempt to create it.

So it is doing exactly what it is supposed to do.

I'm not sure, but you'll probably have to rewrite the entire contents of the file. Or you could use 'a' and that would just add to the end of the file.

Anon

maybe I am going about this the wrong way. I would like to change the value of tabcolor. Any suggestions on how to do this with out having to rewrite the entire file. I am puzzled I can read that value from the file there should be a way to write just the value to the file.

buck2bcr

you can open the file with and 'a' I think and that will let you append the file instead of overwriting it.

Hope it helps.

Anon

all that does is add the value to the end of the file. I need it to replace the value ie $tabcolor = "#ffffff";

foxden

I realize this is very late after your posting, but did you get it fixed? You can do a string ereg_replace (string pattern, string replacement, string string)

Josh

nicki

This is also very long after this was posted but I'm having a similar problem- I've got one file that I read that has a bunch of variables in it that i would like my form's submission to fill in.

So I read that file and write to another hoping that the values have now been hardcoded in but they're not- it's just the same file that i read. no variable interpretation seems to happen with file read and file write.

Does anyone know the best way to do this? aside form using a db? i would know how to do that. There's got to be a way to read and write a file with the variables coming into the program. Should I put some code in here?

$write_dir="./html/test.php";
$loc="./html/rates_test_out.php";
$fh=fopen($loc,"r");
$fileread=fread($fh,filesize($location));
$data=$fileread;

$fp = @fopen("$write_dir","w");
fwrite($fp, $data);
fclose($fp);