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<?php $cc = 'my secret text'; $key = 'my secret key'; $iv = '12345678'; $cipher = mcrypt_module_open(MCRYPT_BLOWFISH,'','cbc',''); mcrypt_generic_init($cipher, $key, $iv); $encrypted = mcrypt_generic($cipher,$cc); $encrypted = base64_encode($encrypted); mcrypt_generic_deinit($cipher); mcrypt_generic_init($cipher, $key, $iv); $decrypted = mdecrypt_generic($cipher, base64_decode($encrypted)); mcrypt_generic_deinit($cipher); echo "encrypted : ".$encrypted; echo "\n"; echo "decrypted : ".$decrypted;
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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_module_open() in /in/3LmKa:7 Stack trace: #0 {main} thrown in /in/3LmKa on line 7
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined function mcrypt_module_open() in /in/3LmKa on line 7
Process exited with code 255.

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