passing custom block output value to page list

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Hi,

I would like to pass a value from a block on a page to the page list output.
The client adds a custom created block to a page in which a value is chosen from a select box.
I would like the chosen value from this selectbox to be shown on the page list teaser.
(I have created a custom page_list template)
custom block view.php:
<?php if (isset($selectbox) && trim($select) != "" && array_key_exists($select, $select_options)) { ?>
<?php echo $select_options[$select]; ?><?php } ?>

(this is outputting the value to the page).

and a custom page list template:

// get value from block, something like:
$test = $page->getValue($select_options[$select]);
//output of select value:
 <?php echo $test ?>
</div>


Thanks,
Una