php:file_get_contents()可与CLI一起使用，但在服务器上调用时不起作用(在页面中) [英] php: file_get_contents() work with CLI, but does not work when called on server (in page)

问题描述

我有点困惑.

我正在使用bit.ly PHP API来缩短一些URL.这在本地主机上可以正常工作-但是，当我在服务器(Apache中运行php的服务器)上尝试使用它时，file_get_contents()返回空字符串.

I am using the bit.ly PHP API to shorten some urls. This works fine on local host - but when I tried it on my server (php running in Apache), file_get_contents() returns an empty string.

我检查了我的Apache日志，但Apache看不到任何警告/错误，所以我在CL上尝试了相同的命令(使用PHP CLI):

I checked my apache logs and cannot see any warning/errors by Apache, so I tried the same command at the CL (using PHP CLI):

>php -a
php > $long_url = some_url_encoded_string;
php > echo file_get_contents($long_url);
{"errorCode": 0, "errorMessage": "", "results": {"http://www.example.html": {"userHash": "abc", "shortKeywordUrl": "", "hash": "xyz", "shortCNAMEUrl": "http://bit.ly/foobar", "shortUrl": "http://bit.ly/foobar"}}, "statusCode": "OK"}

有人知道是什么原因导致这种行为吗?

Does anyone know what could be causing this behaviour?

推荐答案

它可能与PHP配置有关.许多服务器对于CLI和Apache具有不同的php.inis.检查/etc/php5/以查看是否存在多个配置.具体来说，您应该寻找 allow_url_fopen .

It probably has something to do with PHP configuration. Many servers have different php.inis for CLI and Apache. Check /etc/php5/ to see if there is more than one configuration. Specifically, you should be looking for allow_url_fopen.

实际上，Ubuntu默认附带了该文件，.ini位于/etc/php5/apache2/php.ini

Actually, Ubuntu ships with that by default, the .ini is located at /etc/php5/apache2/php.ini

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