Solve PHP cross-domain problems by setting response headers through the header function

Set the domain names that are allowed to be accessed:

1. Allow access to all domain names

header("Access-Control-Allow-Origin:*");

2. Allow access to specified domain names

header( 'Access-Control-Allow-Origin:http://a.test.com' );

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Set the request method to allow access:

1. 1. One or more

header('Access-Control-Allow-Methods:POST,GET,OPTIONS,DELETE');

2, all

header('Access-Control-Allow-Methods:*');

and then set other parameters as needed.

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