If-Else Construct in PHP

Now we will study a special if-else construct, which allows executing some code depending on the fulfillment of a certain condition. The syntax of the construct looks like this:

php<?php
  if (comparison operation) {
    /*
      the code located here will execute,
      if the result of the comparison operation is true
    */
  } else {
    /*
      the code located here will execute,
      if the result of the comparison operation is false
    */
  }
?>