wp_get_environment_type()

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’.


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Return

(string) The current environment type.


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More Information

  • This function allows plugin and theme authors to more easily differentiate how they handle specific functionality between production and development sites in a standardized way.
  • When development is returned by wp_get_environment_type(), WP_DEBUG will be set to true if it is not defined in the wp-config.php file of the site.
  • All hosts that support setting up staging environments are requested to set this feature to staging on those staging environments. Similarly, all developers with development environments to set this value to development appropriately.

Example Usage:

switch ( wp_get_environment_type() ) {
    case 'local':
    case 'development':
        do_nothing();
        break;
     
    case 'staging':
        do_staging_thing();
        break;
     
    case 'production':
    default:
        do_production_thing();
        break;
}

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Source

File: wp-includes/load.php

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' ) ) {
		$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;
}


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Changelog

Changelog
Version Description
5.5.1 Removed the ability to alter the list of types.
5.5.0 Introduced.

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User Contributed Notes

  1. Skip to note 1 content
    Contributed by Khoi Pro

    See case from rtCamp. They placed in mu-plugins/non-production.php.

    <?php
    /**
     *  Non-production environment functionality.
     */
    
    if ( 'production' !== wp_get_environment_type() ) {
    
    	// Block crawling.
    	add_filter( 'robots_txt', 'wpdocs_name_block_crawling', 999 );
    
    	// Enable "Discourage search engines from indexing this site" option.
    	add_filter( 'pre_option_blog_public', '__return_zero', 999 );
    
    }
    
    /**
     * Filters the robots.txt output to block crawling on non-production environment.
     *
     * @param string $output The robots.txt output.
     */
    function wpdocs_name_block_crawling( $output ) {
    
    	$output = '# Crawling is blocked for non-production environment' . PHP_EOL;
    	$output .= 'User-agent: *' . PHP_EOL;
    	$output .= 'Disallow: /';
    
    	return $output;
    }
    
  2. Skip to note 2 content
    Contributed by Ludwig C.

    Setting the environment type by .htaccess or Apache configuration

    # Rules to set WP_ENVIRONMENT_TYPE based on hostname
    RewriteCond %{HTTP_HOST} [.]?localhost$
    RewriteRule .? - [E=WP_ENVIRONMENT_TYPE:local]
    RewriteCond %{HTTP_HOST} ^staging.domain.com$
    RewriteRule .? - [E=WP_ENVIRONMENT_TYPE:staging]
    RewriteCond %{HTTP_HOST} ^www.domain.com$
    RewriteRule .? - [E=WP_ENVIRONMENT_TYPE:production]

    Setting the environment type by Nginx configuration (best inside the php location)
    fastcgi_param WP_ENVIRONMENT_TYPE staging;

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