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run code in 150+ php & hhvm versions
Bugs & Features
<?php $tmp = array('a' => 'b', 'b' => 'c'); echo serialize($tmp);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
a:2:{s:1:"a";s:1:"b";s:1:"b";s:1:"c";}