using-calc-parser.php

using-calc-parser.php

<?php

require('CalcParser.php');

var_dump(CalcParser::parse('2 + 2 * 2'));

/*

Result:

string(36) "Custom hook on parse begin. Parsing:"
string(9) "2 + 2 * 2"
string(33) "Custom hook on parse end. Parsed:"

object(BinaryExpression)#8 (4) {
  ["type"]=>
  string(6) "Binary"
  ["left"]=>
  object(PrimaryExpression)#4 (2) {
    ["type"]=>
    string(7) "Primary"
    ["value"]=>
    int(2)
  }
  ["right"]=>
  object(BinaryExpression)#7 (4) {
    ["type"]=>
    string(6) "Binary"
    ["left"]=>
    object(PrimaryExpression)#5 (2) {
      ["type"]=>
      string(7) "Primary"
      ["value"]=>
      int(2)
    }
    ["right"]=>
    object(PrimaryExpression)#6 (2) {
      ["type"]=>
      string(7) "Primary"
      ["value"]=>
      int(2)
    }
    ["op"]=>
    string(1) "*"
  }
  ["op"]=>
  string(1) "+"
}

*/