How do you access another PHP script in a PHP script? - php

Question

I have a PHP page that needs to send data to another PHP page during the page execution and receive data back.
Can this be done? If so, how?
Update:
Sorry - meant to say that the second script is on a completely different server and domain.
Like how is Stripe doing it with their PHP option: https://stripe.com/docs/api?lang=php

Answer 1

EDIT
Looking at the Stripe source code, you will see they do use cURL (ApiRequestor.php):
private function _curlRequest($meth, $absUrl, $headers, $params, $myApiKey)
{
$curl = curl_init();
$meth = strtolower($meth);
$opts = array();
if ($meth == 'get') {
$opts[CURLOPT_HTTPGET] = 1;
if (count($params) > 0) {
$encoded = self::encode($params);
$absUrl = "$absUrl?$encoded";
}
} else if ($meth == 'post') {
$opts[CURLOPT_POST] = 1;
$opts[CURLOPT_POSTFIELDS] = self::encode($params);
} else if ($meth == 'delete') {
$opts[CURLOPT_CUSTOMREQUEST] = 'DELETE';
if (count($params) > 0) {
$encoded = self::encode($params);
$absUrl = "$absUrl?$encoded";
}
} else {
throw new Stripe_ApiError("Unrecognized method $meth");
}
$absUrl = self::utf8($absUrl);
$opts[CURLOPT_URL] = $absUrl;
$opts[CURLOPT_RETURNTRANSFER] = true;
$opts[CURLOPT_CONNECTTIMEOUT] = 30;
$opts[CURLOPT_TIMEOUT] = 80;
$opts[CURLOPT_RETURNTRANSFER] = true;
$opts[CURLOPT_HTTPHEADER] = $headers;
$opts[CURLOPT_USERPWD] = $myApiKey . ':';
$opts[CURLOPT_CAINFO] = dirname(__FILE__) . '/../data/ca-certificates.crt';
if (!Stripe::$verifySslCerts)
$opts[CURLOPT_SSL_VERIFYPEER] = false;
curl_setopt_array($curl, $opts);
$rbody = curl_exec($curl);
if ($rbody === false) {
$errno = curl_errno($curl);
$message = curl_error($curl);
curl_close($curl);
$this->handleCurlError($errno, $message);
}
$rcode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);
return array($rbody, $rcode);
}
cURL - from the PHP manual:
PHP supports libcurl, a library created by Daniel Stenberg, that
allows you to connect and communicate to many different types of
servers with many different types of protocols. libcurl currently
supports the http, https, ftp, gopher, telnet, dict, file, and ldap
protocols. libcurl also supports HTTPS certificates, HTTP POST, HTTP
PUT, FTP uploading (this can also be done with PHP's ftp extension),
HTTP form based upload, proxies, cookies, and user+password
authentication.
<?php
/* http://localhost/upload.php:
print_r($_POST);
print_r($_FILES);
*/
$ch = curl_init();
$data = array('name' => 'Foo', 'file' => '#/home/user/test.png');
curl_setopt($ch, CURLOPT_URL, 'http://localhost/upload.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_exec($ch);
?>

Answer 2

Use include('script2.php') from script1.php
Then you can call the functions within script2.php (assuming they have global scope) from script1.php.

Answer 3

The other possibility if you want to call a PHP script like the end user via URL's, cURL is a good tool to know about.
http://php.net/manual/en/book.curl.php