通过curl将服务器的发送请求发送到另一个

Question

I have 2 PHP files, each one in separated server.

For example:

1. mainServer/default/index.php
2. externalServer/request.php

The first file code (index.php):

echo $_POST['file_name'];

The Second file code (request.php):

$data = array(
    'file_name' => "file.zip",
    'file_size' => 5000
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://mainServer/default/index.php");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($ch, CURLOPT_TIMEOUT, 2);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);

What I want is send the $data array from externalServer/request.php to mainServer/default/index.php, but there is an error Notice: Undefined index: file_name in default\index.php on line 13.

How to get the $data array to for instance to print an item ?

Answer 1

I found the mistake in your code. Sending an associative array directly (what you did) is not a correct way. You need to send the array as a string.

Example

This->
$data = array(
    'file_name' => "file.zip",
    'file_size' => 5000
);

Should be This->

$data = "file_name=file.zip&file_zipe=500"

Now when you'd sent the data, you'd be able to fetch it via $_POST. You can let php do the array to string conversion using http_build_query.

$data = array(
        'file_name' => "file.zip",
        'file_size' => 5000
    );
$string = http_build_query($data);
//output = file_name=file.zip&file_size=5000

Read more about http_build_query Here