pfssh: how to add (initial) VLANs?

[JeGr]

Hi,

as it's a tedious task we do multiple times on various machines, I opted to write a little playback for pfssh.php to add a VLAN. Problem is, if there's no VLAN created on a particular machine, the config.xml doesn't have the <vlan> array inside the <vlans> and I can't seem to add an (initial) new VLAN with the "normal" way that works for adding VLANs afterwards:

$newvlan = array(
	'if'     => "igbX",
	'tag'    => 123,
	'vlanif' => "igbX.123",
	'descr'  => "dummy123",
);

$config['vlans']['vlan'][] = $newvlan;
write_config();
exec

That works without problems, if there's already a $config[vlans][vlan][0] / a first VLAN in existence. But I can't seem to create the initial one as everything I tried (to make the "vlan" appear), seems to fail:

Fatal error: Uncaught Error: Cannot use string offset as an array in /usr/local/sbin/pfSsh.php(371) : eval()'d code:11
Stack trace:
#0 /usr/local/sbin/pfSsh.php(371): eval()
#1 /usr/local/sbin/pfSsh.php(271): playback_text('$newvlan = arra...')
#2 {main}
  thrown in /usr/local/sbin/pfSsh.php(371) : eval()'d code on line 11
PHP ERROR: Type: 1, File: /usr/local/sbin/pfSsh.php(371) : eval()'d code, Line: 11, Message: Uncaught Error: Cannot use string offset as an array in /usr/local/sbin/pfSsh.php(371) : eval()'d code:11
Stack trace:
#0 /usr/local/sbin/pfSsh.php(371): eval()
#1 /usr/local/sbin/pfSsh.php(271): playback_text('$newvlan = arra...')
#2 {main}

Neither $config['vlans']['vlan'][0] = $newvlan; or $config['vlans']['vlan'][] = $newvlan; or manually trying to add the vlan node manually in the array seem to work. Something silly I'm obviously overlooking but I'd be happy for anyone to chime in ^^

Greets
Jens

[jimp]

You have to declare each level of the hash/array as you go. Like this:

$config['vlans'] = array();
$config['vlans']['vlan'] = array();
$config['vlans']['vlan'][] = $newvlan;

There is a convenience function that can help:

init_config_arr(array('vlans', 'vlan'));
$config['vlans']['vlan'][] = $newvlan;

That function only initializes the arrays if they are unset/don't exist/are not arrays so it's safe to run unconditionally.