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run code in 300+ PHP versions simultaneously
<?php $string = '?foo&bar[]=0&bar[]=2'; $res1=$res2=[]; parse_str($string,$res1); mb_parse_str($string,$res2); echo 'parse_str()'.PHP_EOL; print_r($res1); echo 'mb_parse_str()'.PHP_EOL; print_r($res2);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
parse_str() Array ( [?foo] => [bar] => Array ( [0] => 0 [1] => 2 ) ) mb_parse_str() Array ( [?foo] => [bar] => Array ( [0] => 0 [1] => 2 ) )

preferences:
272.28 ms | 404 KiB | 372 Q