<?php


  function greet($name, $owner) {
    if ( $name == $owner )
      return "Hello boss";

    return "Hello $name";
  }

  echo greet("sasa", "toto");



function isOrdered($one, $two, $three) {
  if (
    ( $one < $two && $two < $three )
    ||
    ( $three < $two && $two < $one )
  )
    return true;

  return false;
}

var_dump(isOrdered(3,5,1));



function getDay($day) {

  $days = [
    "lundi",
    "mardi",
    "mercredi",
    "jeudi",
    "vendredi",
    "samedi",
    "dimanche"
  ];

  return $days[--$day];

}

echo getDay(6);


function getSeason($number) {

  switch(true) {
    case in_array(
      $number,
      [1,2,3]
    ):
      return "Winter";
      break;
    case in_array(
      $number,
      [4,5,6]
    ):
      return "Automn";
      break;
    case in_array(
      $number,
      [7,8,9]
    ):
      return "Summer";
      break;
    case in_array(
      $number,
      [10,11,12]
    ):
      return "Spring";
      break;
    default:
      return "This season doesn't exist";
      break;
  }

}

echo getSeason(11);