title: Even Fibonacci Numbers Sum
signature: function evenFibonacciNumbersSum($limit) {
test_code: <?php
  
  
  // SOLUTION CODE 
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function validateSolution($actual, $expected){
      return serialize($actual) == serialize($expected);
  }
  
  function driver($limit, $expected){
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME($limit), $expected)){
          return "PASSED";
        }
        return "FAILED";
      }
      catch (Exception $exception_obj) {
        return get_class($exception_obj);
      }
  }
  
  function main(){
      printf("TEST-0...%s\n",driver(
        67, 
        44));
      
      printf("TEST-1...%s\n",driver(
        89, 
        44));
      
      printf("TEST-2...%s\n",driver(
        12, 
        10));
      
      printf("TEST-3...%s\n",driver(
        94, 
        44));
      
      printf("TEST-4...%s\n",driver(
        96, 
        44));
      
      printf("TEST-5...%s\n",driver(
        25, 
        10));
      
      printf("TEST-6...%s\n",driver(
        49, 
        44));
      
      printf("TEST-7...%s\n",driver(
        8, 
        10));
      
      printf("TEST-8...%s\n",driver(
        33, 
        10));
      
      printf("TEST-9...%s\n",driver(
        59, 
        44));
      
  }
  
  main();
  ?>
source_py: def even_fibonacci_numbers_sum(limit):
      if (limit < 2):
          return 0
      ef1 = 0
      ef2 = 2
      sm = (ef1 + ef2)
      while (ef2 <= limit):
          ef3 = ((4 * ef2) + ef1)
          if (ef3 > limit):
              break
          ef1 = ef2
          ef2 = ef3
          sm = (sm + ef2)
      return sm
source_cpp: int even_fibonacci_numbers_sum(int limit) {
    if ( limit < 2 ) return 0;
    long long int ef1 = 0, ef2 = 2;
    long long int sum = ef1 + ef2;
    while ( ef2 <= limit ) {
      long long int ef3 = 4 * ef2 + ef1;
      if ( ef3 > limit ) break;
      ef1 = ef2;
      ef2 = ef3;
      sum += ef2;
    }
    return sum;
  }