HTTP Headers

Access Control Allow Origin


Access-Control-Allow-Origin: *


Access-Control-Allow-Origin: http://example.com

Specifies a

Content Type


Content-Type: text/html; charset=utf-8


Content-Type: application/json; charset=utf-8


Content-Type: multipart/form-data; boundary=something

Specifies a

Access Control Allow Methods


Access-Control-Allow-Methods: POST, GET, OPTIONS


Access-Control-Allow-Methods: *

Specifies a

Access Control Max Age


Access-Control-Max-Age: 3600

Specifies a

Access Control Allow Headers


Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With


Access-Control-Allow-Headers: *

Specifies a

Reference:

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers

PHP Usage


<?php
    header("Access-Control-Allow-Origin: *");
    header("Content-Type: application/json; charset=UTF-8");
    header("Access-Control-Allow-Methods: POST");
    header("Access-Control-Max-Age: 3600");
    header("Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With");
?>

Example


<?php
    setcookie("TestCookie","SomeValue");
    header("X-Sample-Test: foo");
    header("Content-type: text/plain");
?>

<html>
<body>

<?php
    var_dump(headers_list());
?>

</body>
</html>


array(3) {
    [0]=>
    string(32) "Set-Cookie: TestCookie=SomeValue"
    [1]=>
    string(18) "X-Sample-Test: foo"
    [2]=>
    string(38) "Content-type: text/plain;charset=UTF-8"
}