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run code in 300+ PHP versions simultaneously
<?php var_dump(crypt("foo\xaabar", '$2a$05$bar'));
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(2) "*0"
Output for 5.3.7 - 5.3.29, 5.4.0 - 5.4.45
string(60) "$2a$05$bar$$$$$$$$$$$$$$$$$$.VCjSimg4y3.sUCBAUiFjKNTAgbO2GEa"
Output for 5.3.0 - 5.3.6
string(60) "$2a$05$bar$$$$$$$$$$$$$$$$$$.MJctHFDlqKbhP9doHixw9/ZN2oy0TzG"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17

Process exited with code 139.

preferences:
258.78 ms | 402 KiB | 425 Q