wppaste
WordPress

wp_parse_auth_cookie( string $cookie = '', string $scheme = '' ): string[]|false

Since
2.7.0, 4.0.0
Source
wp-includes/pluggable.php:1013
Parses a cookie into its components.

Compatibility

WordPress
since 4.0.0
PHP
7.4–8.6-dev
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$schemestringoptional
The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'.Default: ''

Return value

string[]|false
Authentication cookie components. None of the components should be assumed to be valid as they come directly from a client-provided cookie value. If the cookie value is malformed, false is returned.
  • $usernamestring

    User's username.
  • $expirationstring

    The time the cookie expires as a UNIX timestamp.
  • $tokenstring

    User's session token used.
  • $hmacstring

    The security hash for the cookie.
  • $schemestring

    The cookie scheme to use.

Performance profile

How much work a call to wp_parse_auth_cookie() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class
Trivial

Touches nothing outside its own arguments.

Scaling
Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions
12–51

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 65.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
3

3 places in core call this, so the cost is paid more often than your own code shows.

What one call costs · 6 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_parse_auth_cookie() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
empty($cookie) && empty($cookie_name)12–18none
always13–29explode()
empty($cookie) && empty($cookie_name)15–23is_ssl()
empty($cookie) && !empty($cookie_name)26–34is_ssl(), explode()
always30–46explode(), compact()
empty($cookie) && !empty($cookie_name)43–51is_ssl(), explode(), compact()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev6512–518
8.56512–518
8.46512–518
8.36512–518
8.26512–5181 more instruction than PHP 8.1
8.16412–508
7.46412–508

An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.

Uses · 1

Used by · 3

Source code

	function wp_parse_auth_cookie( $cookie = '', $scheme = '' ) {		if ( empty( $cookie ) ) {			switch ( $scheme ) {				case 'auth':					$cookie_name = AUTH_COOKIE;					break;				case 'secure_auth':					$cookie_name = SECURE_AUTH_COOKIE;					break;				case 'logged_in':					$cookie_name = LOGGED_IN_COOKIE;					break;				default:					if ( is_ssl() ) {						$cookie_name = SECURE_AUTH_COOKIE;						$scheme      = 'secure_auth';					} else {						$cookie_name = AUTH_COOKIE;						$scheme      = 'auth';					}			} 			if ( empty( $_COOKIE[ $cookie_name ] ) ) {				return false;			}			$cookie = $_COOKIE[ $cookie_name ];		} 		$cookie_elements = explode( '|', $cookie );		if ( count( $cookie_elements ) !== 4 ) {			return false;		} 		list( $username, $expiration, $token, $hmac ) = $cookie_elements; 		return compact( 'username', 'expiration', 'token', 'hmac', 'scheme' );	}

Changelog

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.

4.0.0
The $token element was added to the return value.from the docblock
2.7.0
Introduced.from the docblock

About this page

Parsed data
Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/pluggable.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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