Method

Retrieves a comma-separated string of the values for a single header.

Description#

public Response::getHeaderLine(
    $name
): string

This method returns all of the header values of the given case-insensitive header name as a string concatenated together using a comma.

NOTE: Not all header values may be appropriately represented using comma concatenation. For such headers, use getHeader() instead and supply your own delimiter when concatenating.

If the header does not appear in the message, this method MUST return an empty string.

Parameters#

$name

Case-insensitive header field name

Return values#

A string of values as provided for the given header concatenated together using a comma. If the header does not appear in the message, this method MUST return an empty string. string