Foundations
Variables
Variables store values that later expressions can reuse.
Variables
variables.php
<?php
$unitPrice = ;
$quantity = 3;
$total = $unitPrice * $quantity;
echo "unit=" . $unitPrice . "\n";
echo "total=" . $total . "\n";
<?php
$unitPrice = ;
$quantity = 3;
$total = $unitPrice * $quantity;
echo "unit=" . $unitPrice . "\n";
echo "total=" . $total . "\n";
<?php
$unitPrice = ;
$quantity = 3;
$total = $unitPrice * $quantity;
echo "unit=" . $unitPrice . "\n";
echo "total=" . $total . "\n";
variable
PHP variable names start with `$` and can store strings, numbers, arrays, and other values.