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<?php $plaintext = "\x04\x03\x02\x01\x00\x00\x00"; $ciphertext = mcrypt_encrypt( MCRYPT_RIJNDAEL_128, "YELLOW SUBMARINE", $plaintext, MCRYPT_MODE_ECB ); $decrypted = trim( mcrypt_decrypt( MCRYPT_RIJNDAEL_128, "YELLOW SUBMARINE", $ciphertext, MCRYPT_MODE_ECB ) ); var_dump([ bin2hex($plaintext), bin2hex($decrypted) ]); var_dump([ mb_strlen($plaintext, '8bit'), mb_strlen($decrypted, '8bit') ]);
Output for 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
Fatal error: Uncaught Error: Call to undefined function mcrypt_encrypt() in /in/bSoNu:4 Stack trace: #0 {main} thrown in /in/bSoNu on line 4
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Fatal error: Call to undefined function mcrypt_encrypt() in /in/bSoNu on line 4
Process exited with code 255.

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