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可以參考demo模塊的寫法

不知道從哪找的了一個函數(shù)還能用

// 城市

function vg_city() {

$ci = &get_instance();

// 聯(lián)動菜單緩存

$linkage = $ci->get_cache('linkage-'.SITE_ID.'-address');

$linklevel = $ci->get_cache('linklevel-'.SITE_ID);

$linkageid = $ci->get_cache('linkage-'.SITE_ID.'-address-id');

//

$linklevel = $linklevel['address'] + 1;

$str= '<script type="text/javascript">var memberpath = "'.MEMBER_PATH.'";</script>';

//$str.= '<script type="text/javascript" src="'.MEMBER_PATH.'statics/js/jquery.min.js"></script>';

$str.= '<script type="text/javascript" src="'.MEMBER_PATH.'statics/js/jquery.ld.js"></script>';

$level = 1;

$default = '';

$value = '';

/*

if ($value) {

$pids = substr($linkage[$linkageid[$value]]['pids'], 2);

$level = substr_count($pids, ',') + 1;

$default = !$pids ? '["'.$value.'"]' : '["'.str_replace(',', '","', $pids).'","'.$value.'"]';

}*/

// 每次可以添加4組城市

foreach (array(1) as $id) {

$name = 'city_'.$id;

$str.= '<div style="padding:10px">';

$str.= '<input type="hidden" id="dr_select_'.$name.'" value="">';

$str.= '<input type="hidden" id="dr_select_name_'.$name.'" value="">';

$str.= '<span id="dr_linkage_'.$name.'_select" style="'.($value ? 'display:none' : '').'">';

for ($i = 1; $i <= $linklevel; $i++) {

$style = $i > $level ? 'style="display:none"' : '';

$str.= '<select class="finecms-select-'.$name.'" name="'.$name.'-'.$i.'" id="'.$name.'-'.$i.'" width="100" '.$style.'><option value=""> -- </option></select>&nbsp;&nbsp;';

}

$str.= '</span>';

$str.= '

<script type="text/javascript">

function dr_linkage_select_'.$name.'() {

$("#dr_linkage_'.$name.'_select").show();

$("#dr_linkage_'.$name.'_cxselect").hide();

}

$(function(){

var $ld5 = $(".finecms-select-'.$name.'");

$ld5.ld({ajaxOptions:{"url":"/index.php?s=member&c=api&m=linkage&code=address"},defaultParentId:0})

var ld5_api = $ld5.ld("api");

ld5_api.selected('.$default.');

$ld5.bind("change",onchange);

function onchange(e){

var $target = $(e.target);

var index = $ld5.index($target);

//$("#'.$name.'-'.$i.'").remove();

$("#dr_select_'.$name.'").val($ld5.eq(index).show().val());

$("#dr_select_name_'.$name.'").val($ld5.eq(index).show().find("option:selected").text());

index ++;

$ld5.eq(index).show();

}

})

</script></div>';

}

echo $str;

}