Illegal string offset error

[Stefan83]

Hi

Can anyone tell me what is wrong with the code below?

I'm getting a Warning: Illegal string offset 'redirect' in... error in this line:

if (preg_match("/aeid/", $confirmation['redirect'])){ 

I've just updated php to 5.4 and I get the error when I submit a gravity form for wordpress via ajax

function salesmod_confirm_change($confirmation, $form, $lead, $ajax){

if (preg_match("/aeid/", $confirmation['redirect'])){

if (!$_GET['cfn']) {

$confirm_id = substr(md5( substr(md5(time()), 0, 16)), 0, 16);

gform_update_meta($lead['id'], 'confirmation_id', $confirm_id);

} else {

$confirm_id = $_GET['cfn'];


}

$confirmation = array('redirect' => $confirmation['redirect'] . "&cfn=" . $confirm_id);

}

return $confirmation;

}

Thanks

[AbraCadaver]

$confirmation is a string and not an array at that point.  If you did $confirmation[0] it would give you string offset 0 which is the first character of the string, but there is no redirect offset in a string.