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<?php
include 'autoload.php';
 
 if (isset($_POST["add"])) {
 //Getting values from ajax
 $operator = $_POST["operator"];
 $field1 = $_POST["field1"];
 $field2 = $_POST["field2"];
 //Loading anwser to page
 //Object
 $answer = new Operator($operator,$field1,$field2);
 $result = $answer->calculator();
 //Getting operator type
 if ($operator == "add") {
 $opera = "#007bff";
 $color = "white";
 $sign = "+";
 }elseif ($operator == "sub") {
 $opera = "black";
 $color = "white";
 $sign = "-";
 }elseif ($operator == "mul") {
 $opera = "#600b4a";
 $color = "white";
 $sign = "*";
 }elseif ($operator == "div") {
 $opera = "blueviolet";
 $color = "white";
 $sign = "/";
 }
 //Converting to json
 $jsonresult = array("bg"=>$opera, "result"=>$result, "color"=>$color, "sign"=>$sign);
 echo json_encode($jsonresult);
 }else{
 echo "Am not set";
 }
 ?>
 
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