php 通过API接口连接12306余票查询

<?php
header("content-type:text/html;charset='utf-8'");
//设置编码
echo "<meta content='text/html; charset=utf-8' http-equiv='Content-Type'>";
 
//获取API传过来的信息 queryDate 时间 from_station 始发站编号 to_station 到达站编号
$url = "https://kyfw.12306.cn/otn/lcxxcx/query?purpose_codes=ADULT&queryDate=2016-09-31&from_station=GZQ&to_station=GAZ";
 
//获取内容 内容是json格式
$data = getContent($url);
function getContent($url){//获取网页中输出部分，并返回字符串
    $ch = curl_init();
    $timeout = 5;
    curl_setopt ($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,FALSE);
    curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
    $dxycontent = curl_exec($ch);
    curl_close($ch);
    return $dxycontent;
}
//转码
$data = json_decode($data);
 
//json转码之后是对象, 需要将对象转数组 不然无法进行循环
function object_array($array){
    if(is_object($array)){
        $array = (array)$array;
    }
    if(is_array($array)){
        foreach($array as $key=>$value){
            $array[$key] = object_array($value);
        }
    }
    return $array;
}
//得到数组数据
$data2 = object_array($data);
//稍稍美化一下
echo '<table border="1">';
echo '<tr><td>车次</td><td>始发站/到达站/终点站</td><td>出发时间/到达时间</td><td>历时</td><td>商务座</td><td>特等座</td>
                <td>一等座</td><td>二等座</td><td>高级软卧</td><td>软卧</td><td>硬卧</td><td>软座</td><td>硬座</td>
                <td>无座</td><td>其他</td><td>备注</td></tr>';
//循环
foreach($data2['data']['datas'] as $k=>$v){
    echo '<tr><td>'.$v['station_train_code'].'</td><td>'.$v['start_station_name'].'->'.$v['to_station_name'].'->'.$v['end_station_name'].'</td><td>'.$v['start_time'].'  /  '.$v['arrive_time'].'</td><td>'.$v['lishi'].'</td><td>'.$v['swz_num'].'</td><td>'.$v['tz_num'].'</td><td>'.$v['zy_num'].'</td><td>'.$v['ze_num'].'</td><td>'.$v['gr_num'].'</td><td>'.$v['rw_num'].'</td><td>'.$v['yw_num'].'</td><td>'.$v['rz_num'].'</td><td>'.$v['yz_num'].'</td><td>'.$v['wz_num'].'</td><td>'.$v['qt_num'].'</td><td>'.$v['note'].'</td></tr>';
}
echo '</table>';
/*
 *   ["gr_num"]=>高级软卧
 *   ["qt_num"]=>其他
 *   ["rw_num"]=> 软卧
 *   ["rz_num"]=>软座
 *   ["tz_num"]=>特等座
 *   ["wz_num"]=>无座
 *   ["yw_num"]=>硬卧
 *   ["yz_num"]=>硬座
 *   ["ze_num"]=>二等座
 *   ["zy_num"]=> 一等座
 *   ["swz_num"]=> 商务座
 */