首页 / 网页编程 / PHP / PHP地区二级联动下拉菜单代码

<？phpheader（"Content-Type: application/json; charset=utf-8"）;echo "province=[];";foreach （$arrProvinces as $province） {echo "province.push（[".$province["ProvinceID"].","".$province["ProvinceName"].""]）;";}echo "city=[];";foreach （$arrCitys as $city） {echo "city.push（[".$city["ProvinceID"].",".$city["CityID"].","".$city["CityName"].""]）;";}

<script type="text/javascript">function initProvince（）{var objProv = jQuery（"#locationForm"）.get（0）.province;objProv.options.length = 0;for （var i=0; i<province.length; i++） {objProv.options[i] = new Option（province[i][1], province[i][0]）;}}function onProvinceChange（）{var objProv = jQuery（"#locationForm"）.get（0）.province;var objCity = jQuery（"#locationForm"）.get（0）.city;provinceId = objProv.value;objCity.options.length = 0;objCity.options[0] = new Option（"请选择", 0）;for （var i=1,j=1; i<=city.length; i++） {if （city[i-1][0] == provinceId） {objCity.options[j++] = new Option（city[i-1][2], city[i-1][1]）;}}}jQuery（document）.ready（function（）{initProvince（）;}）;</script>

<form id="locationForm"><select id="province" onchange="onProvinceChange（）"></select> <select id="city"></select></form>