php access origin
<?php
header("Access-Control-Allow-Origin: *");php access origin
<?php
header("Access-Control-Allow-Origin: *");php header allow cross origin
/**
* An example CORS-compliant method. It will allow any GET, POST, or OPTIONS requests from any
* origin.
*
* In a production environment, you probably want to be more restrictive, but this gives you
* the general idea of what is involved. For the nitty-gritty low-down, read:
*
* - https://developer.mozilla.org/en/HTTP_access_control
* - http://www.w3.org/TR/cors/
*
*/
function cors() {
// Allow from any origin
if (isset($_SERVER['HTTP_ORIGIN'])) {
// Decide if the origin in $_SERVER['HTTP_ORIGIN'] is one
// you want to allow, and if so:
header("Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}");
header('Access-Control-Allow-Credentials: true');
header('Access-Control-Max-Age: 86400'); // cache for 1 day
}
// Access-Control headers are received during OPTIONS requests
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD']))
// may also be using PUT, PATCH, HEAD etc
header("Access-Control-Allow-Methods: GET, POST, OPTIONS");
if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']))
header("Access-Control-Allow-Headers: {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}");
exit(0);
}
echo "You have CORS!";
}what is CORS
Use CORS to allow cross-origin access.
CORS is a part of HTTP that lets servers specify any other hosts
from which a browser should permit loading of content.
How to block cross-origin access
To prevent cross-origin writes,
check an unguessable token in the request — known as a Cross-Site Request Forgery (CSRF) token.
prevent cross-origin reads of pages that require this token.
To prevent cross-origin reads of a resource,
ensure that it is not embeddable.
prevent embedding because embedding a resource always leaks some information about it.
To prevent cross-origin embeds,
ensure that your resource cannot be interpreted
Browsers may not respect the Content-Type header.
For example, if you point a <script> tag at an HTML document, the browser will try to parse the HTML as JavaScript. When your resource is not an entry point to your site, you can also use a CSRF token to prevent embedding.Copyright © 2021 Codeinu
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