php thinkphp cross-domain problem interface is set up headers or incorrect report of cross-domain solutions OPTIONS

if($_SERVER['REQUEST_METHOD'] == 'OPTIONS'){
    header("Access-Control-Allow-Origin: *");
    header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization");
    header('Access-Control-Allow-Methods: GET, POST, PUT,DELETE,OPTIONS,PATCH');
    exit;
}
//上面的代码很关键   问题就出在上面这里
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization");
header('Access-Control-Allow-Methods: GET, POST, PUT,DELETE,OPTIONS,PATCH');

x

 

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if($_SERVER['REQUEST_METHOD'] == 'OPTIONS'){

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

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    header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization");

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

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    exit;

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}

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// The above code is the key problem lies in the above here

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

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header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization");

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