WP_Site_Health::is_development_environment()
Checks if the current environment type is set to ‘development’ or ‘local’.
Return
(bool) True if it is a development environment, false if not.
Source
File: wp-admin/includes/class-wp-site-health.php
public function is_development_environment() {
		return in_array( wp_get_environment_type(), array( 'development', 'local' ), true );
	}  Changelog
| Version | Description | 
|---|---|
| 5.6.0 | Introduced. | 
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Licensed under the GNU GPLv2+ License.
    https://developer.wordpress.org/reference/classes/wp_site_health/is_development_environment