代码描述：基于php的12306火车票查询接口调用代码实例
// +----------------------------------------------------------------------
//----------------------------------
// 12306火车票查询调用示例代码 － 聚合数据
// 在线接口文档：http://www.juhe.cn/docs/22
//----------------------------------
header('Content-type:text/html;charset=utf-8');
//配置您申请的appkey
$appkey = "*********************";
//************1.站到站查询（含票价）************
$url = "http://apis.juhe.cn/train/s2swithprice";
$params = array(
"start" => "",//出发站
"end" => "",//终点站
"key" => $appkey,//应用APPKEY(应用详细页查询)
"dtype" => "",//返回数据的格式,xml或json，默认json
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
//************2.12306订票②：车次票价查询************
$url = "http://apis.juhe.cn/train/ticket.price.php";
$params = array(
"train_no" => "",//列次编号，对应12306订票①：查询车次中返回的train_no
"from_station_no" => "",//出发站序号，对应12306订票①：查询车次中返回的from_station_no
"to_station_no" => "",//出发站序号，对应12306订票①：查询车次中返回的to_station_no
"date" => "",//默认当天，格式：2014-12-25
"key" => $appkey,//应用APPKEY(应用详细页查询)
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
//************3.车次查询************
$url = "http://apis.juhe.cn/train/s";
$params = array(
"name" => "",//车次名称，如：G4
"key" => $appkey,//应用APPKEY(应用详细页查询)
"dtype" => "",//返回数据的格式,xml或json，默认json
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
//************4.站到站查询************
$url = "http://apis.juhe.cn/train/s2s";
$params = array(
"start" => "",//出发站
"end" => "",//终点站
"traintype" => "",//列车类型，G-高速动车 K-快速 T-空调特快 D-动车组 Z-直达特快 Q-其他
"key" => $appkey,//应用APPKEY(应用详细页查询)
"dtype" => "",//返回数据的格式,xml或json，默认json
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
//************5.12306实时余票查询************
$url = "http://apis.juhe.cn/train/yp";
$params = array(
"key" => $appkey,//应用APPKEY(应用详细页查询)
"dtype" => "",//返回数据的格式,xml或json，默认json
"from" => "",//出发站,如：上海虹桥
"to" => "",// 到达站,如：温州南
"date" => "",//出发日期，默认今日
"tt" => "",//车次类型，默认全部，如：G(高铁)、D(动车)、T(特快)、Z(直达)、K(快速)、Q(其他)
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
//************6.12306订票①：查询车次************
$url = "http://apis.juhe.cn/train/ticket.cc.php";
$params = array(
"from" => "",//出发站名称：如上海虹桥
"to" => "",//到达站名称：如温州南
"date" => "",//默认当天，格式：2014-07-11
"tt" => "",//车次类型，默认全部，如：G(高铁)、D(动车)、T(特快)、Z(直达)、K(快速)、Q(其他)
"key" => $appkey,//应用APPKEY(应用详细页查询)
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
//************7.火车票代售点查询************
$url = "http://apis.juhe.cn/train/dsd";
$params = array(
"province" => "",//省份,如：浙江
"city" => "",//城市，如：温州
"county" => "",//区/县，如：鹿城区
"key" => $appkey,//应用APPKEY(应用详细页查询)
"dtype" => "",//返回数据的格式,xml或json，默认json
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
//************8.列车站点列表************
$url = "http://apis.juhe.cn/train/station.list.php";
$params = array(
"key" => $appkey,//应用APPKEY(应用详细页查询)
"dtype" => "",//返回数据的格式,xml或json，默认json
);
$paramstring = http_build_query($params);
$content = juhecurl($url,$paramstring);
$result = json_decode($content,true);
if($result){
if($result['error_code']=='0'){
print_r($result);
}else{
echo $result['error_code'].":".$result['reason'];
}
}else{
echo "请求失败";
}
//**************************************************
/**
* 请求接口返回内容
* @param string $url [请求的URL地址]
* @param string $params [请求的参数]
* @param int $ipost [是否采用POST形式]
* @return string
*/
function juhecurl($url,$params=false,$ispost=0){
$httpInfo = array();
$ch = curl_init();
curl_setopt( $ch, CURLOPT_HTTP_VERSION , CURL_HTTP_VERSION_1_1 );
curl_setopt( $ch, CURLOPT_USERAGENT , 'JuheData' );
curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT , 60 );
curl_setopt( $ch, CURLOPT_TIMEOUT , 60);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER , true );
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
if( $ispost )
{
curl_setopt( $ch , CURLOPT_POST , true );
curl_setopt( $ch , CURLOPT_POSTFIELDS , $params );
curl_setopt( $ch , CURLOPT_URL , $url );
}
else
{
if($params){
curl_setopt( $ch , CURLOPT_URL , $url.'?'.$params );
}else{
curl_setopt( $ch , CURLOPT_URL , $url);
}
}
$response = curl_exec( $ch );
if ($response === FALSE) {
//echo "cURL Error: " . curl_error($ch);
return false;
}
$httpCode = curl_getinfo( $ch , CURLINFO_HTTP_CODE );
$httpInfo = array_merge( $httpInfo , curl_getinfo( $ch ) );
curl_close( $ch );
return $response;
} 
