MessageTrait.php

Sets the body of the current message.

Appends data to the body of the current message.

Populates the $headers array with any headers the server knows about.

Returns an array containing all Headers.

Returns a single Header object. If multiple headers with the same name exist, then will return an array of header objects.

Sets a header and it's value.

Removes a header from the list of headers we track.

Adds an additional header value to any headers that accept multiple values (i.e. are an array or implement ArrayAccess)

Adds a header (not a header value) with the same name. Use this only when you set multiple headers with the same name, typically, for `Set-Cookie`.

Adds an additional header value to any headers that accept multiple values (i.e. are an array or implement ArrayAccess)

Takes a header name in any case, and returns the normal-case version of the header.

Sets the HTTP protocol version.