Determining a Part of an Hour in PHP

Let us have a variable $min, which stores the number of minutes from 0 to 59:

php<?php
  $min = 10;
?>

Let's determine which quarter of the hour the specified number of minutes falls into:

php<?php
  $min = 10;
  
  if ($min >= 0 and $min <= 14) {
    echo '1 quarter';
  }
  
  if ($min >= 15 and $min <= 29) {
    echo '2 quarter';
  }
  
  if ($min >= 30 and $min <= 44) {
    echo '3 quarter';
  }
  
  if ($min >= 45 and $min <= 59) {
    echo '4 quarter';
  }
?>