PHP 'file_get_contents' does not work from server

问题

I have a website (PHP) hosted in Yahoo small business and application (Java) Hosted in Rackspace.

I am making a file_get_contents from website to application. which works fine in my local. but when i try the same after deploying it in server does not work.

Here i am making arequest which sends list of training in JSON format.

PHP part

  $trainingArrayJson = file_get_contents('http://mywebapplication.com/publicTraining/getTrainingsAsJson/');
 $trainingArray =  json_decode($trainingArrayJson);
      -------
      -----

this is not working.

if i do

   $trainingArrayJson = file_get_contents('http://localhost:8080/publicTraining/getTrainingsAsJson/');
 $trainingArray =  json_decode($trainingArrayJson);

this works fine.

回答1:

You need to allow

allow_url_fopen

in your php.ini config file. Some hosts disallow it for security.

回答2:

A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen() for more details on how to specify the filename. See the Supported Protocols and Wrappers for links to information about what abilities the various wrappers have, notes on their usage, and information on any predefined variables they may provide.

回答3:

Check the php.ini file and make sure similar is available as below

; Whether to allow the treatment of URLs (like http:// or ftp://) as files. ; http://php.net/allow-url-fopen allow_url_fopen = On

; Whether to allow include/require to open URLs (like http:// or ftp://) as files. ; http://php.net/allow-url-include allow_url_include = Off

来源：https://stackoverflow.com/questions/19024349/php-file-get-contents-does-not-work-from-server

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