autoDetectDomain

autoDetectDomain [Protected]

Automatically detects the current server hostname from incoming HTTP headers, sanitizes the host string, and formats it for cross-subdomain cookie and session security. Strips custom ports if present (e.g., example.com:8080 -> example.com).

Usage

autoDetectDomain(): string

Parameters

• Takes no arguments.

Return Value

(string) : Returns a normalized domain string prefixed with a wildcard dot (e.g., ".example.com") for valid HTTP web requests. : Returns an empty string ("") for localhost, direct IP addresses, missing host headers, or local development environments where wildcard domain cookies are rejected by the web browsers.

Examples

$cphp->autoDetectDomain();
// Result: .example.com

Config Options

Config Key	Default Value	Allowed Values	Description
domain	'' (empty)	string	Domain name of website. If left empty the script will attempt to get the domain.

Debug Errors

• No debug errors.

Related Methods

setCookie | startSession

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