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<?php define('SALT', 'whateveryouwant'); function encrypt($text) { return trim(base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, SALT, $text, MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND)))); } function decrypt($text) { return trim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, SALT, base64_decode($text), MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND))); } $encryptedmessage = encrypt("your message"); echo decrypt($encryptedmessage);
Output for 7.0.6 - 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Call to undefined function mcrypt_encrypt() in /in/3VG0U:7 Stack trace: #0 /in/3VG0U(15): encrypt('your message') #1 {main} thrown in /in/3VG0U on line 7
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught Error: Call to undefined function mcrypt_encrypt() in /in/3VG0U:7 Stack trace: #0 /in/3VG0U(15): encrypt('your message') #1 {main} thrown in /in/3VG0U on line 7
Process exited with code 255.
Output for 5.6.8 - 5.6.20, 7.0.0 - 7.0.5
Warning: mcrypt_encrypt(): Key of size 15 not supported by this algorithm. Only keys of sizes 16, 24 or 32 supported in /in/3VG0U on line 7 Warning: mcrypt_decrypt(): Key of size 15 not supported by this algorithm. Only keys of sizes 16, 24 or 32 supported in /in/3VG0U on line 12
Output for 5.5.35, 5.6.21
Fatal error: Call to undefined function mcrypt_encrypt() in /in/3VG0U on line 7
Process exited with code 255.
Output for 5.5.24 - 5.5.34
your message
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192.88 ms | 401 KiB | 183 Q