HTTP/2 301
server: nginx
date: Tue, 30 Dec 2025 05:44:59 GMT
content-type: text/html; charset=UTF-8
x-olaf: ⛄
vary: accept, content-type
x-redirect-by: WordPress
location: https://developer.wordpress.org/reference/classes/wp_http_response/header/
x-frame-options: SAMEORIGIN
alt-svc: h3=":443"; ma=86400
x-nc: MISS ord 2
HTTP/2 200
server: nginx
date: Tue, 30 Dec 2025 05:45:00 GMT
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
x-olaf: ⛄
vary: accept, content-type
link:
; rel="https://api.w.org/"
link:
; rel="alternate"; title="JSON"; type="application/json"
link: ; rel=shortlink
x-frame-options: SAMEORIGIN
content-encoding: gzip
alt-svc: h3=":443"; ma=86400
x-nc: MISS ord 2
WP_HTTP_Response::header() – Method | Developer.WordPress.org
WP_HTTP_Response::header( string $key, string $value, bool $replace = true )
Sets a single HTTP header.
$keystringrequiredHeader name.
$valuestringrequiredHeader value.
$replacebooloptionalWhether to replace an existing header of the same name.
Default:true
public function header( $key, $value, $replace = true ) {
if ( $replace || ! isset( $this->headers[ $key ] ) ) {
$this->headers[ $key ] = $value;
} else {
$this->headers[ $key ] .= ', ' . $value;
}
}
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| Version | Description |
|---|
| 4.4.0 | Introduced. |
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