3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types=1); namespace HTML { use HTML\Header\Base; class Header { public Base $base; } } namespace HTML\Header { class Base { public $href; public $target; } } namespace { $header = new HTML\Header(); $header->base = new HTML\Header\Base(); $header->base->href = 'https://www.example.com/'; var_dump($header); }

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)
8.5.70.0090.00816.81
8.5.60.0070.01116.64
8.5.50.0020.00616.46
8.4.220.0120.00722.11
8.4.210.0100.01219.51
8.4.180.0140.01021.42
8.4.90.0120.00619.59
8.3.310.0130.00718.29
8.3.180.0040.00418.27
8.3.50.0040.00418.60
8.2.310.0120.00718.12
preferences:
54.63 ms | 522 KiB | 5 Q