- <?php 
-   
- // your code goes here 
- $formula = '[Spaledar] $v0 $v1 - $v2'; 
- $vars = ["v0"=>"Connected","v1"=>"Viet Name","v2"=>"Hebus jifo"]; 
-   
- echo "\n $formula"; 
-   
- 		echo "\n".$tokens[1]; 
- 		return $vars[$tokens[1]]; 
- 	}, $formula); 
- echo "\n $replaced"; 
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