Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
773 views
in Technique[技术] by (71.8m points)

php json returning bool(false)

Any thoughts as to why the following is not working.

$request_url = "someurl?myId=$id"; //returns feed like above

$json = file_get_contents($request_url, true); //getting the file content

$decode = json_decode($json, true);

var_dump($json);

When I paste the request_url into a browser I get back the json data but if I try in php the var_dump is simply bool(false); Any ideas??

Update and fix OK guys thanks for all the help. Ye helped me track this one down. It turned out to be the php.ini is configured to disallow the opening of urls so the file_get_contents would not work. I found the following handy function mentioned on various sites and used it so its sorted. Here is the method I used in case it helps someone else.

function file_get_contents_curl($url) {
$ch = curl_init();

curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //Set curl to return the data instead of printing it to the browser.
curl_setopt($ch, CURLOPT_URL, $url);

$data = curl_exec($ch);
curl_close($ch);

return $data;
}
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

maybe the response's charset of $request_url is not 'utf-8' or 'ansi'.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...