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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(serialize(array("password,refresh_token")));
based on Bt3H5
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(40) "a:1:{i:0;s:22:"password,refresh_token";}"