CodeIgniter PHP - How to randomly select a language class message?

Question

The idea here is to have a series of tips in application/language/english/tips_lang.php

$lang['tip1'] = 'Water your plants';
$lang['tip2'] = 'Aerate your soil';
$lang['tip3'] = 'Use ventilation';
$lang['tip4'] = 'Fertilizers are good';

etc...

In my controller I would like to have something like this pseudo-code

$input = $this->lang->line('tip_array');

$tip = array_rand($input, 1);

Anyone know if this is possible?

Thanks for giving a hand!

UPDATE controller

        //Random Tip
        $array = explode('|', $this->lang->line('tips'));
        $tips = array_rand($array, 1);
        $this->template->write('tips', $tips);

Answer 1

CodeIgniter doesn't support n-dimensional arrays for the language files, but you can work around that:

$lang['tips'] = 'Water your plants|Aerate your soil|Use ventilation|Fertilizers are good';

Or, if you preffer to have them one on each line:

$lang['tips'] = array();
$lang['tips'][] = 'Water your plants';
$lang['tips'][] = 'Aerate your soil';
$lang['tips'][] = 'Use ventilation';
$lang['tips'][] = 'Fertilizers are good';
$lang['tips'] = implode('|', $lang['tips']);

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/controllers/yourController.php:

$tips = explode('|', $this->lang->line('tips'));

echo $tips[array_rand($tips, 1)];

---

Hope it helps!