PHP add values to form entry

[calebm12]

very new to php and i am not sure if this can even be done.  i would like to add a "default" value to the end of any value that a user enters into my form

The field is formated as this:

  $form['email_recipients'] = array(

    '#type' => 'textarea',

    '#title' => t('Send Message To'),

    '#default_value' => $node->email_recipients,

    '#cols' => 60,

    '#rows' => 6,

    '#description' => t('Use a comma or space to separate addresses. Make sure the above email addresses are valid to avoid campaign suspension.'),

    '#required' => TRUE,

  );

 

i would like for the user to enter for example just their username, and then have it automatically add @sitename.com to the value they enter once it is processed.  Is this possible?  If so, how in the world do i do it!?!?

 

many thanks

[mikesta707]

$username = "mikesta707";
$atWhere = "@phpfreaks.com";

$wholeAddress = $username . $atWhere;

[calebm12]

thanks for the quick response.  sorry for my ignorance.  how would i build this into my form?

 

 

 

[mikesta707]

i would have to see your code to give an exact answer, but whereever you assign the value of the post variable to a php variable, instead of doing

$username = $_POST['username'];

 

do

$username = $_POST['username'] . "@wherever.com";