using a config file

[Braxton]

I don't know if I will make much sense in what i am saying but. I have seen that some scripts that I have previously download use a config.php file for mysql connection information. That being said let me explain what I am trying to do or perhaps thought up. I want to make a simple contact form using php and use a config.php file so that say I have a email change I can simply edit the config.php file.

So it would include such files as

form.php
mailer.php
config.php

My question is, Is this possible and how would I go about coding the config file? I hope this makes sense and thanks for any help anyone provides.

/edit/

This is all that I have so far in terms of coding.

<?php
include ('config.php');
?>
<form action="mailer.php" method="post"> 
<table width="50%" border="0" cellspacing="1" class="tablestyle" cellpadding="1" align="center">
<tr><td>Name:</td>
<td><input type="text" name="name" size="50">
</td>
</tr>
<tr> 
<td>Email: </td>
<td> 
<input type="text" name="email" size="50">
</td>
</tr>
<tr> 
<td>Site Url: </td>
<td> 
<input type="text" name="siteurl" size="50">
</td>
</tr>
<tr> 
<td>Site Name: </td>
<td> 
<input type="text" name="sitename" size="50">
</td>
</tr>
<td>Comments: </td>
<td>
<textarea name="comments" cols=51 rows="7"></textarea>
</td>
</tr>
<tr><td colspan="2"><center><input type="submit" value="Submit">&nbsp;&nbsp;<input type="reset" value="Try again"></center></td></tr>
</table></form>

[Braxton]

Okay nevermind, It was kind of obvious what to do. This is what i am up with...

mailer.php

<?php

$email = trim($_POST['email']);
$name = trim($_POST['name']);
$siteurl = trim($_POST['siteurl']);
$sitename = trim($_POST['sitename']);
$comments = trim($_POST['comments']);

if ($email=="" || $comments=="" || $name=="" || $siteurl=="" || $sitename=="")
{
    echo "Blank submission or you didn't fill in some fields. Go back.";
}
else {
//do email format validation


if(!eregi('^([._a-z0-9-]+[._a-z0-9-]*)@(([a-z0-9-]+\.)*([a-z0-9-]+)(\.[a-z]{2,3})?)$', $email)) {

echo 'That does not look like a valid email address, please re-enter.';
exit;

}

include ('config.php'); 

mail("$youremail", "$subject", $message, $headers); 

echo "Thank you $name for your e-mail. It have now been sent. You should hear back from me in the next 24-48 hours. Have a wonderful day :-)";

} 
?>

config.php

<?php
// Edit the Following to fit your needs
$youremail='[e-mail]';
$headers = "From: $name <$email>\n";
$subject= 'Subject here'; 
// Do not Edit
$message = "$comments, $siteurl, $sitename";
?>

[subwayman]

Yes but what happens if you reuse the form on other sites? Thius will require editing for every site. The n what happens if you make a change to the form. Every site has to edit the file again. Why not split out the config part , put it in a separate file and 'include' it in for form file. This will also save some hassle if you have a difference development, test and production site. Once all the config files are created you can modify the form as much as you like and it will simply work on upload without edit.

[Braxton]

Very good point that you made Imma consider much of what you said.