Conditions and loops
if / elseif, the match expression, foreach, for and while.
Runs in Zerethon IDE · PHP 8.4
Official PHP documentation ↗
main.php
<?php
for ($n = 1; $n <= 4; $n++) {
if ($n % 2 === 0) {
echo "$n even\n";
} elseif ($n === 3) {
echo "$n three\n";
} else {
echo "$n odd\n";
}
}
foreach (['SAT', 'MON'] as $day) {
$kind = match ($day) {
'SAT', 'SUN' => 'weekend',
default => 'weekday',
};
echo "$day is a $kind\n";
}
foreach (['ada' => 90, 'alan' => 85] as $name => $score) {
echo "$name: $score\n";
}
$i = 0;
while (++$i <= 2) {
echo "i = $i\n";
}Output
1 odd 2 even 3 three 4 even SAT is a weekend MON is a weekday ada: 90 alan: 85 i = 1 i = 2
Tip: match compares with ===, returns a value and needs no break; an unmatched value throws UnhandledMatchError.