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<?php define('__FLAG__','3xZG{dgznclXAwFVCUHPMWFViZ½SsltxKdrvûVYHSr1}'); if(__FLAG__ === stypr_crypt($_GET['flag'])) echo 'Correct!'; else echo 'Incorrect..'; ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Call to undefined function stypr_crypt() in /in/d1v12:6 Stack trace: #0 {main} thrown in /in/d1v12 on line 6
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Call to undefined function stypr_crypt() in /in/d1v12 on line 6
Process exited with code 255.

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