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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(parse_str('x[y][][z]=1&x[y][][w]=a&x[y][][z]=2&x[y][][w]=3'));
Output for 7.2.0
Deprecated: parse_str(): Calling parse_str() without the result argument is deprecated in /in/OnsBp on line 3 NULL
Output for 5.3.20 - 7.1.10
NULL