dynamic str_replace

[chrislive]

What I am wanting is to have a template message. eg. Welcome [name], your email is [email].

Then I have a form that will have two fields, 'name' and 'email' and on submit I search the body of the template message, find any [field] and replace it with its matching $_POST['field'].

I want it to find any template field and try replace it with a matching form field. Any ideas?

[chrislive]

I did come up with the following.. but not sure its the most efficient method... comments:

<?php

$template = "Thank you [contact_name] your email is [contact_email]";

while ($var = each($_POST)) {

  $field = "[".$var['key']."]";
  $value = $var['value'];
  $template = str_replace($field, $value, $template);

}
echo "<BR>$template<BR><BR>";
?>

<FORM ACTION="<?php echo "$PHP_SELF"; ?>" METHOD="POST" NAME="chatForm">
  <table align="left">
      <tr>
        <td valign="top">
          <font color="<?=$maintitle;?>" size="<?=$mainfontsize;?>" face="<?=$maintextfont;?>"><B>Name:</B></font>
        </td>
        <td>
          <INPUT TYPE="text" NAME="contact_name" MAXLENGTH=30 class="form" value="<?=$contact_name;?>">
        </td>
      </tr>

  <tr>
    <td valign="top">
      <font color="<?=$maintitle;?>" size="<?=$mainfontsize;?>" face="<?=$maintextfont;?>"><B>Email:</B></font>
    </td>
    <td>
      <INPUT TYPE="text" NAME="contact_email" MAXLENGTH=30 class="form" value="<?=$contact_email;?>">
    </td>
  </tr>

  <tr>
    <td colspan=2 align="center">
      <INPUT TYPE="submit" VALUE="submit form" class="buttons">
    </td>
  </tr>

</table>
</form>