3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { const BAR = 30; public function __construct() { $time = 1377176743; $array = array( 1377176711, 1377176712, 1377176714, 1377176717, ); array_filter($array, function($value) use ($time) { echo "evaluating $value against $time and " . static::BAR . "\n"; var_dump($value, $time - static::BAR, $value >= $time - static::BAR); return $value >= $time - static::BAR; }); var_dump($array); } } new Foo;

preferences:
31.11 ms | 402 KiB | 5 Q