php - Calling environment variables inside class not working -

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I'm not sure why this is not working? I want to be able to access the set set in my .env.php file, but NetBeans is showing an error that the getenv function is not recognized.

This is my code 

  & lt ;? Php class Blast Extends Lectures {... Protected $ connection = getenv ('DB_NAME'); }

Set the value of the class from the manufacturer. 

  class Blah provides eloquent {protected $ connection = null; Function __ conversion () {$ this- & gt; Connection = getenv ('DB_NAME'); }}

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