无法从远程 url 获取 json 内容答案

【问题标题】：Can't get json content from remote url无法从远程 url 获取 json 内容
【发布时间】：2017-11-25 17:25:08
【问题描述】：

我已经尝试了所有方法，但仍然无法从以下网址获取 JSON 内容：http://onderbrekingen.infrax.be/onderbrekingen/Home/GetOnderbrekingen

这是我最新的 php：

$url = 'http://onderbrekingen.infrax.be/onderbrekingen/Home/GetOnderbrekingen';
$curlSession = curl_init();
curl_setopt($curlSession, CURLOPT_URL, 'http://onderbrekingen.infrax.be/onderbrekingen/Home/GetOnderbrekingen');
curl_setopt($curlSession, CURLOPT_BINARYTRANSFER, true);
curl_setopt($curlSession, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curlSession, $jsonData = json_decode(curl_exec($curlSession));
curl_close($curlSession);

switch (json_last_error()) {
case JSON_ERROR_DEPTH:
    echo 'json_decode() - Maximum stack depth exceeded';
break;
case JSON_ERROR_STATE_MISMATCH:
    echo 'json_decode() - Underflow or the modes mismatch';
break;
case JSON_ERROR_CTRL_CHAR:
    echo 'json_decode() - Unexpected control character found';
break;
case JSON_ERROR_SYNTAX:
    echo 'json_decode() - Syntax error, malformed JSON';
break;
case JSON_ERROR_UTF8:
    echo 'json_decode() - Malformed UTF-8 characters, possibly incorrectly encoded';
break;
default:
    echo 'json_decode() - Unknown error';
break;
case JSON_ERROR_NONE:
    print '<b>JSON var_dump:</b>';
    print '</br></br>';
    var_dump($jsonData);
    print '</br></br><hr></br>';
break;
}

print '<b>echo content:</b>';
print '</br>';
echo stream_get_contents(fopen($url, "r"));

我也用file_get_contents() 试过了，还是不行。 var_dump 每次都返回 NULL。 stream_get_contents 似乎也没有返回原始 JSON 内容。

格兹，物理化学

【问题讨论】：

告诉我们输出而不仅仅是“它不起作用”会很有帮助
为什么：curl_setopt($curlSession, $jsonData = json_decode(curl_exec($curlSession));
只写：$jsonData = json_decode(curl_exec($curlSession));

标签： php json file-get-contents

【解决方案1】：

替换

curl_setopt($curlSession, $jsonData = json_decode(curl_exec($curlSession));

与

$jsonData = json_decode(curl_exec($curlSession));
curl_setopt($curlSession, $jsonData,true);

当我测试它时它工作得很好

//output
{"Onderbrekingen":[{"Id":"5f303a78-6bcb-e711-80d7-005056b663fa","Cabinenummer":"097LTF","Onderbrekingstype":"Storing","Discipline":"Elektriciteit","Postcode":" ","Gemeente":" ","BeginDatum":"\/Date(1510873200000)\/","EindDatum":null,"BeginUur":"08:46","EindUur":null,"Latitude":0,"Longitude":0,"GeimpacteerdeStraten":[],"GeimpacteerdKlantAantal":"101 - 500","ExtraBeschrijving":null,"DnbCode":null,"Scada":true,"InterneOpmerking":"Aangemaakt vanuit SCADA","IsRedLine":true,"ValidationErrors":null,"IsValid":true,"IsDirty":true,"Error":""}],"ScadaSync":"19:16"}<b>JSON var_dump:</b></br></br>int(1)

【讨论】：