if else with ? and : in php code example

Example 1: php elseif

<?php
if ($a > $b) {
    echo "a is bigger than b";
} elseif ($a == $b) {
    echo "a is equal to b";
} else {
    echo "a is smaller than b";
}
?>

Example 2: if statement php

if (condition) {
  expression
}