What are some common CORS issues that PHP developers face when integrating with Angular in the frontend?

One common CORS issue that PHP developers face when integrating with Angular in the frontend is the "Access-Control-Allow-Origin" header not being set correctly. This can lead to cross-origin requests being blocked by the browser. To solve this, you can set the header in your PHP code to allow requests from your Angular frontend.

header("Access-Control-Allow-Origin: http://your-angular-frontend-url.com");
header("Access-Control-Allow-Methods: GET, POST, PUT, DELETE");
header("Access-Control-Allow-Headers: Content-Type");