3v4l.org

run code in 300+ PHP versions simultaneously
<?php $cars = array(); $car1 = new stdClass(); $car1->name = "Car1"; $car1->colour = "Blue"; $cars[] = $car1; $mycars = array(); foreach($cars as $car){ $mycars[$car->colour][] = $car->name; } foreach($mycars as $colour => $cars) { echo "<div class='$colour'>"; foreach($cars as $car) { echo "<h1>$car</h1>"; echo "<p>$colour</p>"; } echo "</div>"; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<div class='Blue'><h1>Car1</h1><p>Blue</p></div>
preferences:
300.17 ms | 406 KiB | 460 Q