Writing to files

[markspec87]

Im Currently making a CMS, as i believe it includes a lot of functions and code ill be using time and time again, but ive run into trouble here.

I have a file "config.php" which contains

[code]
$host = "myhost; // db host
$user = "myusername"; // db username
$pass = "mypassword"; // db password
$db = "mydatabase"; // db name[/code]

Im looking for some help on editing this file through PHP. i.e if i have a page with database preferences, if these are altered, the new values will be written to this file.

If anyone e can help me out that would be greatly appreciated :)

[Barand]

I'd store config.php in ini file format

::cofig.php::
[pre]
host=www.domain.com
user=uname
pwd=pword
db=dbname
[/pre]

Then process like this
[code]
<?php
if (isset($_POST['action']) && $_POST['action']=='Update') {
    $F = fopen('config.php', 'w');
    foreach ($_POST['config'] as $k => $v) {
        fprintf ($F,"%s=%s\r\n", $k, $v);
    }
    fclose($F);
}

$config = parse_ini_file('config.php');
?>

<form method='post'>
      Host <input type="text" name="config[host]" value="<?php echo $config['host']?>" size="20"><br>
      User <input type="text" name="config[user]'" value="<?php echo $config['user']?>" size="20"><br>
      Password <input type="text" name="config[pwd]" value="<?php echo $config['pwd']?>" size="20"><br>
      DB  <input type="text" name="config[db]" value="<?php echo $config['db']?>" size="20"><br>
      <input type="submit" name="action" value="Update">
</form>
[/code]

[markspec87]

Sorry for bumping this but ive run into problem.

After moving host i now only have php4, instead of 5(temporary)

is there a way to get this script working on PHP4?

[quote]Fatal error: Call to undefined function: fprintf() [/quote]

EDIT: according to my sources this is still a function in PHP4? any ideas whats wrong?

[Barand]

The only php5 specific code in the script is fprintf

Replace the line with

fwrite ($F, sprintf("%s=%s\r\n", $k, $v));

[markspec87]

works a treat thank you :)

now without being too needy, could you point me how to read out those values? :) :)

[Barand]

[code]
<?php
$config = parse_ini_file('config.php');

foreach ($config as $k => $v) {
    echo "$k : $v <br/>";
}
?>
[/code]

[markspec87]

Thanks for that but i need it for use in a script.

I.e use the config to read each line into variables.

So i can use it to connect to the database.

So how would i read those into variables?

Sorry for all Questions :)

[jawapro]

If you already know WHAT values are in the file, and what order they are in...

instead of echoing them - write them into an array.

And then just use the appropriate value from the array when you need it.

JP

[Barand]

$config is an array.

[code]
$config = parse_ini_file('config.php');

$password = $config['pwd'];
[/code]