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