Basic curl example

Once you've compiled PHP with cURL support, you can begin using the cURL functions. The basic idea behind the cURL functions is that you initialize a cURL session using the curl_init(), then you can set all your options for the transfer via the curl_setopt(), then you can execute the session with the curl_exec() and then you finish off your session using the curl_close(). Here is an example that uses the cURL functions to fetch the example.com homepage into a file:

Example #1 Using PHP's cURL module to fetch the example.com homepage

<?php

$ch 
curl_init("http://www.example.com/");
$fp fopen("example_homepage.txt""w");

curl_setopt($chCURLOPT_FILE$fp);
curl_setopt($chCURLOPT_HEADER0);

curl_exec($ch);
curl_close($ch);
fclose($fp);
?>

Коментарии

Автор:
It is important to notice that when using curl to post form data and you use an array for CURLOPT_POSTFIELDS option, the post will be in multipart format

<?php
$params
=['name'=>'John''surname'=>'Doe''age'=>36];
$defaults = array(
CURLOPT_URL => 'http://myremoteservice/'
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $params,
);
$ch curl_init();
curl_setopt_array($ch, ($options $defaults));
?>
This produce the following post header:

--------------------------fd1c4191862e3566
Content-Disposition: form-data; name="name"

Jhon
--------------------------fd1c4191862e3566
Content-Disposition: form-data; name="surnname"

Doe
--------------------------fd1c4191862e3566
Content-Disposition: form-data; name="age"

36
--------------------------fd1c4191862e3566--

Setting CURLOPT_POSTFIELDS as follow produce a standard post header

CURLOPT_POSTFIELDS => http_build_query($params),

Which is:
name=John&surname=Doe&age=36

This caused me 2 days of debug while interacting with a java service which was sensible to this difference, while the equivalent one in php got both format without problem.
2015-04-01 12:45:41
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