What are best practices for setting custom HTTP headers in PHP?

When setting custom HTTP headers in PHP, it is important to ensure that the headers are properly formatted and that they adhere to HTTP standards. It is recommended to use the header() function provided by PHP to set custom headers. This function allows you to set headers such as Content-Type, Cache-Control, and Authorization. 

// Set a custom Content-Type header
header('Content-Type: application/json');

// Set a custom Cache-Control header
header('Cache-Control: no-cache, no-store, must-revalidate');

// Set a custom Authorization header
header('Authorization: Bearer your_access_token_here');

Keywords

HTTP headers PHP custom headers setHeader security

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