ZENCART随意放置切换货币的代码

刚有人问起来，把sideboxes里的模型层和显示层代码剥离了出来，就形成了下面的代码

这个代码可以在ZENCART的任意页面显示切换货币

<?php
 if (isset($currencies) && is_object($currencies)) {
reset($currencies->currencies);
$currencies_array = array();
while (list($key, $value) = each($currencies->currencies)) {
$currencies_array[] = array('id' => $key, 'text' => $value['title']);
}
$hidden_get_variables = '';
reset($_GET);
while (list($key, $value) = each($_GET)) {
if ( ($key != 'currency') && ($key != zen_session_name()) && ($key != 'x') && ($key != 'y') ) {
$hidden_get_variables .= zen_draw_hidden_field($key, $value);
}
}
}
$content = zen_draw_form('currencies', zen_href_link(basename(ereg_replace('.php','', $PHP_SELF)), '',
$request_type, false), 'get');
$content .= zen_draw_pull_down_menu('currency', $currencies_array, $_SESSION['currency'],
'onchange="this.form.submit();" style="width: 100%"') . $hidden_get_variables . zen_hide_session_id();
$content .= '</form>';
echo $content;
?>