PHP mendukung beberapa jenis loop.

for loop:

for ($i = 1; $i <= 5; $i++) {
    echo $i . " ";
}
// Output: 1 2 3 4 5

while loop:

$x = 0;
while ($x < 3) {
    echo $x . " ";
    $x++;
}
// Output: 0 1 2

foreach — iterasi array:

// Indexed array
$buah = ["Apel", "Mangga", "Jeruk"];
foreach ($buah as $item) {
    echo $item . "\n";
}

// Associative array — akses key dan value
$user = ["nama" => "Budi", "umur" => 25];
foreach ($user as $key => $value) {
    echo "$key: $value\n";
}

foreach adalah loop paling sering dipakai di PHP karena aman dan mudah dibaca.

break & continue:

for ($i = 1; $i <= 10; $i++) {
    if ($i == 5) break;     // Berhenti di 5
    if ($i % 2 == 0) continue; // Skip genap
    echo $i . " ";
}
// Output: 1 3