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run code in 150+ php & hhvm versions
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<?php echo crypt("veronica","_Q");
Output for 5.3.2 - 7.1.0
*0
Output for 5.3.0 - 5.3.1
_Q$$$$$$$qK1ZM2vrJkU
Output for 4.3.0 - 5.2.17

Process exited with code 139.