Conditionals

An if statement lets PHP choose between branches.

conditionals.php

<?php
$temperature = ;
$status = "";

if ($temperature >= 80) {
    $status = "warm";
} else {
    $status = "comfortable";
}

echo "temperature=" . $temperature . "\n";
echo "status=" . $status . "\n";

<?php
$temperature = ;
$status = "";

if ($temperature >= 80) {
    $status = "warm";
} else {
    $status = "comfortable";
}

echo "temperature=" . $temperature . "\n";
echo "status=" . $status . "\n";

<?php
$temperature = ;
$status = "";

if ($temperature >= 80) {
    $status = "warm";
} else {
    $status = "comfortable";
}

echo "temperature=" . $temperature . "\n";
echo "status=" . $status . "\n";

if statement An `if` statement runs one block when its condition is true and can use `else` for the other case.