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run code in 200+ php & hhvm versions
Bugs & Features
<?php $brands = array(2, 4, 8, 36); echo http_build_query(array('b' => $brands));
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
b%5B0%5D=2&b%5B1%5D=4&b%5B2%5D=8&b%5B3%5D=36