中国天气网 天气预报API 国家气象局 根据城市名称抓取城市

function curl($url){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_REFERER, ‘http://www.weather.com.cn/forecast/index.shtml‘);//必须滴
    curl_setopt($ch, CURLOPT_COOKIE,‘isexist=1‘);//最好带上 比较稳定
    curl_setopt($ch, CURLOPT_USERAGENT, ‘Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0‘);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    $data = curl_exec($ch);
    curl_close($ch);
    return $data;
}
$city = ‘广州‘;
$url = ‘http://toy1.weather.com.cn/search?cityname=‘.urlencode($city).‘&callback=jsonp‘.time().mt_rand(100, 999).‘&_=‘.time().mt_rand(100, 999);
$result = explode(‘~‘, substr(strtolower(curl($url)), 28, -4));
var_export($result);
exit();