wp_remote_retrieve_header( array|WP_Error $response, string $header ): array|string

Parameters

$responsearray|WP_Error

HTTP response.

$headerstring

Header name to retrieve value from.

Return

array|string

The header(s) value(s). Array if multiple headers with the same name are retrieved. Empty string if incorrect parameter given, or if the header doesn't exist.

Uses · 1

• is_wp_error()Checks whether the given variable is a WordPress Error.

Used by · 4

• WP_Site_Health::check_for_page_caching()Checks if site has page cache enabled or not.
• discover_pingback_server_uri()Finds a pingback server URI based on the given URL.
• download_url()Downloads a URL to a local temporary file using the WordPress HTTP API.
• wp_install_maybe_enable_pretty_permalinks()Maybe enable pretty permalinks on installation.

Source

View on Trac ↗View on GitHub ↗

264function wp_remote_retrieve_header( $response, $header ) {265	if ( is_wp_error( $response ) || ! isset( $response['headers'] ) ) {266		return '';267	}268 269	return $response['headers'][ $header ] ?? '';270}

History

Introduced in 2.7.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.0.4 tag, from src/wp-includes/http.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

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