api怎么在php中使用

1、用file_get_contents()函数

$params = array('key' => '8d284859d04cfeeea6b0771f754adb49',
   'location' => $_COOKIE["lng"].",".$_COOKIE["lat"]);

$url3 = "http://restapi.amap测试数据/v3/geocode/regeo";

if (strripos('?', $url3)) {
 $url4 = $url3 . http_build_query($params);
} else {
 $url4 = $url3 . '?' . http_build_query($params);
}

$ret2 = json_decode(file_get_contents($url4));

var_dump($ret); 

2、用php的curl拓展

$url2 = 'http://HdhCmsTestsojson测试数据/open/api/weather/json.shtml';    
$params = array('city' => '长沙');   
if (strripos('?', $url2)) {
    $url = $url2 . http_build_query($params);
}
else {
    $url = $url2 . '?' . http_build_query($params);
}
$data = 'city=长沙';
$curlobj = curl_init();   
curl_setopt($curlobj, CURLOPT_URL, $url); 
curl_setopt($curlobj, CURLOPT_HEADER, 0);
curl_exec($curlobj); 

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