3v4l.org

run code in 500+ PHP versions simultaneously
<?php $data1 = [ "user_number" => "423423", // unique_id "reg_date" => "2013-01-20", // date of registration yyyy-mm-dd ]; echo http_build_query($data1);
Output for 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 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
user_number=423423&reg_date=2013-01-20
preferences:
97.83 ms | 1611 KiB | 4 Q