[英]PHP: Empty result - file_get_contents
i am using file_get_contents to run a php script on my website that will export some data in a textfile. 我正在使用file_get_contents在我的网站上运行php脚本,该脚本将在文本文件中导出一些数据。 The php script "export.php" prints out "OK" when the job is done and "Error" if an error occures.
完成作业后,PHP脚本“ export.php”将输出“ OK”,如果发生错误,则将输出“ Error”。
If i run export.php in my browser it will print "OK" if i run it by calling file_get_contents in another php script the result is empty. 如果我在浏览器中运行export.php,如果我通过在另一个php脚本中调用file_get_contents来运行它,则会显示“ OK”,结果为空。 But export.php prints in any case "OK" or "Error".
但是在任何情况下export.php都将输出“ OK”或“ Error”。
This is my script that calls export.php: 这是我的脚本,调用export.php:
$opts = array('http' =>
array(
'method' => 'GET',
'timeout' => 240
)
);
$context = stream_context_create($opts);
$url_pre = "http://";
$url = "127.0.0.1/export.php";
$html = @file_get_contents($url_pre.$url,false,$context);
if ($html === false){
$job_ok=false;
$result=error_get_last();
echo "Error: ".$result."<br />";
}else{
if (substr($html,0,2)=="OK"){
$job_ok=true;
$errurl = "";
$result="Job done";
echo "Job done: ".$result."<br />";
}else{
$job_ok=false;
$errurl = $url_pre.$url;
$result=$html;
echo "Error: ".$result."<br />";
}
}
echo "HTML: $html <br />";
The result of the script is: 该脚本的结果是:
Error:
错误:
If i open " http://127.0.0.1/export.php " in my browser i get: 如果我在浏览器中打开“ http://127.0.0.1/export.php ”, 则会得到:
OK
好
Maybe someone can help me! 也许有人可以帮助我!
Thanks! 谢谢!
I have changed file_get_contents to curl and now it works! 我已将file_get_contents更改为curl,现在可以使用了!
function curl_file_get_contents($url){
$curl = curl_init();
$userAgent = 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)';
curl_setopt($curl,CURLOPT_URL,$url); //The URL to fetch. This can also be set when initializing a session with curl_init().
curl_setopt($curl,CURLOPT_RETURNTRANSFER,TRUE); //TRUE to return the transfer as a string of the return value of curl_exec() instead of outputting it out directly.
curl_setopt($curl,CURLOPT_CONNECTTIMEOUT,5); //The number of seconds to wait while trying to connect.
curl_setopt($curl, CURLOPT_USERAGENT, $userAgent); //The contents of the "User-Agent: " header to be used in a HTTP request.
curl_setopt($curl, CURLOPT_FAILONERROR, TRUE); //To fail silently if the HTTP code returned is greater than or equal to 400.
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, TRUE); //To follow any "Location: " header that the server sends as part of the HTTP header.
curl_setopt($curl, CURLOPT_AUTOREFERER, TRUE); //To automatically set the Referer: field in requests where it follows a Location: redirect.
curl_setopt($curl, CURLOPT_TIMEOUT, 240); //The maximum number of seconds to allow cURL functions to execute.
$contents = curl_exec($curl);
curl_close($curl);
return $contents;
}
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