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run code in 150+ php & hhvm versions
Bugs & Features
<?php print crypt('foo', '$2a$07$usesomesillystringfor$');
Output for 5.3.0 - 7.1.0
$2a$07$usesomesillystringfor.JAAZYEAFy1oCS9uel1PsOtPDwPMJoH2
Output for 4.3.0 - 5.2.17

Process exited with code 139.