In this question, I see where the $handle = @fopen($thumb, 'r');
was changed to $handle = @file_get_contents($thumb);
because he needed to use file_get_contents for a string.
I am getting the same error but I do not see a fopen() element that needs to be changed? Where does this need to occur?
} elseif( strpos($post_id, 'user_') !== false ) {
$user_id = str_replace('user_', '', $post_id);
$user_id = intval( $user_id );
$v = get_user_meta( $user_id, $field['name'], false );
// value is an array
if( isset($v[0]) ) {
$value = $v[0];
}