Last updated: August 27, 2026.
Conditional statements choose behavior from runtime values. Use strict comparisons when automatic type conversion could be surprising.
<?php
declare(strict_types=1);
$score = 82;
if ($score >= 90) {
$grade = 'A';
} elseif ($score >= 80) {
$grade = 'B';
} else {
$grade = 'C or below';
}
echo $grade;<?php
$status = 'paid';
$label = match ($status) {
'pending' => 'Waiting for payment',
'paid' => 'Ready to fulfill',
'cancelled' => 'Cancelled',
default => 'Unknown status',
};match uses strict comparison and returns a value. Use switch when fall-through is intentional.
