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WordPress

wp_get_environment_type(): string

Since
5.5.0, 5.5.1, 5.5.1
Source
wp-includes/load.php:250
Retrieves the current environment type.

Description

The type can be set via the WP_ENVIRONMENT_TYPE global system variable, or a constant of the same name.

Possible values are 'local', 'development', 'staging', and 'production'.
If not set, the type defaults to 'production'.

Compatibility

WordPress
since 5.5.1
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.

Return value

string
The current environment type.

Performance profile

How much work a call to wp_get_environment_type() 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
5–45

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 47.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
8

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

What it touches

  • hookthird-party callbacksdo_action()one call below wp_get_environment_type()

Further down the call graph this can also reach query, option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 5 distinct outcomes

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

WhenInstructionsCalls it makes
!defined('WP_RUN_CORE_TESTS')5none
!defined('WP_ENVIRONMENT_TYPES')16–23getenv()
defined('WP_ENVIRONMENT_TYPES') && !function_exists()20–27function_exists(), getenv()
defined('WP_ENVIRONMENT_TYPES')30–37function_exists(), function_exists(), _deprecated_argument(), getenv()
defined('WP_ENVIRONMENT_TYPES') && function_exists()38–45function_exists(), function_exists(), __(), sprintf(), _deprecated_argument(), getenv()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev475–459
8.5475–459
8.4475–4594 fewer instructions than PHP 8.3
8.3515–459
8.2515–459
8.1515–459
7.4515–459

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 · 2

  • __()Retrieves the translation of $text.
  • _deprecated_argument()Marks a function argument as deprecated and inform when it has been used.

Used by · 8

Source code

function wp_get_environment_type() {	static $current_env = ''; 	if ( ! defined( 'WP_RUN_CORE_TESTS' ) && $current_env ) {		return $current_env;	} 	$wp_environments = array(		'local',		'development',		'staging',		'production',	); 	// Add a note about the deprecated WP_ENVIRONMENT_TYPES constant.	if ( defined( 'WP_ENVIRONMENT_TYPES' ) && function_exists( '_deprecated_argument' ) ) {		if ( function_exists( '__' ) ) {			/* translators: %s: WP_ENVIRONMENT_TYPES */			$message = sprintf( __( 'The %s constant is no longer supported.' ), 'WP_ENVIRONMENT_TYPES' );		} else {			$message = sprintf( 'The %s constant is no longer supported.', 'WP_ENVIRONMENT_TYPES' );		} 		_deprecated_argument(			'define()',			'5.5.1',			$message		);	} 	// Check if the environment variable has been set, if `getenv` is available on the system.	if ( function_exists( 'getenv' ) ) {		$has_env = getenv( 'WP_ENVIRONMENT_TYPE' );		if ( false !== $has_env ) {			$current_env = $has_env;		}	} 	// Fetch the environment from a constant, this overrides the global system variable.	if ( defined( 'WP_ENVIRONMENT_TYPE' ) && WP_ENVIRONMENT_TYPE ) {		$current_env = WP_ENVIRONMENT_TYPE;	} 	// Make sure the environment is an allowed one, and not accidentally set to an invalid value.	if ( ! in_array( $current_env, $wp_environments, true ) ) {		$current_env = 'production';	} 	return $current_env;}

Changelog

Introduced in 5.5.0. 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.

5.5.1
Removed the ability to alter the list of types.from the docblock
5.5.1
Added the 'local' type.from the docblock
5.5.0
Introduced.from the docblock

About this page

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