Excerpts from GD_Config::set

gistfile1.aw

<?php
$bind = array(
  'key' => $key,
  'value' => $value,
);
$where['key = ?']  = $key;

$db = Zend_Db_Table::getDefaultAdapter()
$db->update('configuration', $bind, $where);

// Zend_Db_Statement_Exception: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'key = 'last_page_load')'

// I tried it with only this too:
$bind = array(
  'value' => $value,
);

Full function is here:

https://github.com/asgrim/godeploy/blob/develop/library/GD/Config.php#L89