3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { } class First { protected $collection; public function __construct(array $items) { $this->collection = (function (A ...$items) { return $items; })(...$items); } }; class Second { protected $collection; public function __construct(array $items) { foreach ($items as $item) { if (!($item instanceof A) { throw new Exception(); } } $collection = $items; } }; $given = [ new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), new A(), ]; $start = microtime(true); for ($i = 0; $i < 10000; $i++) { new First($given); } echo "First: " . (microtime(true) - $start) . PHP_EOL; $start = microtime(true); for ($i = 0; $i < 10000; $i++) { new Second($given); } echo "Second: " . (microtime(true) - $start) . PHP_EOL;

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.0.20.0230.08020.24
7.0.10.0070.05320.23
7.0.00.0100.03720.23
5.6.170.0370.06320.55
5.6.160.0100.05020.61
5.6.150.0100.06318.15
5.6.140.0070.03718.14
5.6.130.0130.07718.18
5.6.120.0100.04321.16
5.6.110.0030.06320.99
5.6.100.0130.07721.05
5.6.90.0170.08021.02
5.6.80.0100.07720.40
5.5.310.0270.04020.28
5.5.300.0070.08017.98
5.5.290.0100.08017.98
5.5.280.0130.04720.89
5.5.270.0130.07720.85
5.5.260.0070.08020.77
5.5.250.0070.08720.71
5.5.240.0130.07720.28
preferences:
147.31 ms | 1394 KiB | 7 Q