Fetches all HTTP request headers from the current request. Works in the Apache, FastCGI, CLI, and FPM webservers.
This function has no parameters.
An associative array of all the HTTP headers in the current request, or false on failure.
You can also get at the value of the common CGI variables by reading them from the environment, which works whether or not you are using PHP as an Apache module. Use phpinfo to see a list of all of the available environment variables.
|7.3.0||This function became available in the FPM SAPI.|