How to send a GET request from PHP?

问题:

I\'m planning to use PHP for a simple requirement. I need to download a XML content from a URL, for which I need to send HTTP GET request to that URL.

How do I do it in PHP?

回答1:

Unless you need more than just the contents of the file, you could use file_get_contents.

$xml = file_get_contents(\"http://www.example.com/file.xml\");

For anything more complex, I\'d use cURL.

回答2:

For more advanced GET/POST requests, you can install the CURL library (http://us3.php.net/curl):

$ch = curl_init(\"REMOTE XML FILE URL GOES HERE\"); // such as http://example.com/example.xml
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
$data = curl_exec($ch);
curl_close($ch);

回答3:

http_get should do the trick. The advantages of http_get over file_get_contents include the ability to view HTTP headers, access request details, and control the connection timeout.

$response = http_get(\"http://www.example.com/file.xml\");

回答4:

Remember that if you are using a proxy you need to do a little trick in your php code:

(PROXY WITHOUT AUTENTICATION EXAMPLE)

<?php
$aContext = array(
    \'http\' => array(
        \'proxy\' => \'proxy:8080\',
        \'request_fulluri\' => true,
    ),
);
$cxContext = stream_context_create($aContext);

$sFile = file_get_contents(\"http://www.google.com\", False, $cxContext);

echo $sFile;
?>

回答5:

Depending on whether your php setup allows fopen on URLs, you could also simply fopen the url with the get arguments in the string (such as http://example.com?variable=value )

Edit: Re-reading the question I\'m not certain whether you\'re looking to pass variables or not - if you\'re not you can simply send the fopen request containg http://example.com/filename.xml - feel free to ignore the variable=value part

回答6:

I like using fsockopen open for this.

回答7:

In the other hand, using REST API of other servers are very popular in PHP. Suppose you are looking for a way to redirect some HTTP requests into the other server (for example getting an xml file). Here is a PHP package to help you:

https://github.com/romanpitak/PHP-REST-Client

So, getting the xml file:

$client = new Client(\'http://example.com\');
$request = $client->newRequest(\'/filename.xml\');
$response = $request->getResponse();
echo $response->getParsedResponse();