<?php
  /*
  $a = 1 + 1;
  echo "1 + 1 is $a\n";
  $typea = gettype($a);
  echo "Type: $typea \n";
  */
  
  /*
  $b = "1" + "1";
  echo "\"1\" + \"1\" is $b \n";
  $typeb = gettype($b);
  echo "Type: $typeb \n";
  */
  
  /*
  $c = "1" + 1;
  echo "\"1\" + 1 is $c \n";
  $typec = gettype($c);
  echo "Type: $typec \n";
  */
  
  /*
  $d = '1' + (double)'1';
  echo "'1' + '1' is $d \n";
  $typed = gettype($d);
  echo "Type: $typed \n"; 
  */
  
  /*
  $array = ["Allison" => "Buchholtz-Au", "Ema" =>"Horvath"];
  echo "{$array['Ema']}\n";
  */
  
  /*
  $array2 = [3, 5, 6];
  echo "{$array2[0]}\n";
  */
  
  /*
  $arr = array(1, "two", "three");
  foreach ($arr as $key => $counter) {
    echo "Value:$key => $counter\n";
  }
  
  
  $arr = array("a" => "one", "b" => "two", "c" => "three");
  foreach ($arr as $key => $value) {
    echo "Key: $key; Value: $value\n";
  }
  */
?>