What are some common issues with CORS when making POST requests in PHP?

When making POST requests in PHP, a common issue with CORS (Cross-Origin Resource Sharing) is that the browser may block the request due to security restrictions. To solve this, you can set the appropriate CORS headers in your PHP script to allow cross-origin requests. This can be done by adding the 'Access-Control-Allow-Origin' header with the value of '*' to allow requests from any origin. 

// Set CORS headers to allow cross-origin requests
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Methods: POST");
header("Access-Control-Allow-Headers: Content-Type");

// Check if the request method is POST
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Process the POST request
    // Your code here
} else {
    // Handle other request methods
    http_response_code(405);
    echo "Method Not Allowed";
}

Keywords

CORS POST requests PHP headers preflight requests

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