PHP static variable as a result of another function -


i trying define php class static variables. trying following avoid using globals.

class class_name{   private static $var1 = is_plugin_inactive('plugin/plugin.php'); //check if wordpress has plugin active   public static function dosomestuff(){     echo $var1;   } } //init class class_name::dosomestuff();

this get's me error parse error: syntax error, unexpected '(', expecting ',' or ';' in my_file.php @ line defining static variable.

any please.

not sure of exact situation, can do: 

class class_name {     private static $var1 = null;         //check if wordpress has plugin active     public static function dosomestuff(){         if(is_null(self::$var1))             self::$var1 = is_plugin_inactive('plugin/plugin.php');         echo self::$var1;     } }

basically call function wanting to, initialize if not already?


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