Ternary Choice

The ternary operator chooses between two expressions.

ternary_choice.php

<?php
$age = ;
$ticket = $age >= 18 ? "adult" : "child";
$price = $ticket === "adult" ? 12 : 6;

echo "age=" . $age . "\n";
echo "ticket=" . $ticket . "\n";
echo "price=" . $price . "\n";

<?php
$age = ;
$ticket = $age >= 18 ? "adult" : "child";
$price = $ticket === "adult" ? 12 : 6;

echo "age=" . $age . "\n";
echo "ticket=" . $ticket . "\n";
echo "price=" . $price . "\n";

<?php
$age = ;
$ticket = $age >= 18 ? "adult" : "child";
$price = $ticket === "adult" ? 12 : 6;

echo "age=" . $age . "\n";
echo "ticket=" . $ticket . "\n";
echo "price=" . $price . "\n";

ternary `condition ? a : b` returns `a` when the condition is true, otherwise `b`.