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<?php $key = 'password to (en/de)crypt'; $string = ' string to be encrypted '; // note the spaces $iv = mcrypt_create_iv( mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC), MCRYPT_DEV_URANDOM ); $encrypted = base64_encode( $iv . mcrypt_encrypt( MCRYPT_RIJNDAEL_128, hash('sha256', $key, true), $string, MCRYPT_MODE_CBC, $iv ) ); $data = base64_decode($encrypted); $iv = substr($data, 0, mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC)); $decrypted = rtrim( mcrypt_decrypt( MCRYPT_RIJNDAEL_128, hash('sha256', $key, true), substr($data, mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC)), MCRYPT_MODE_CBC, $iv ), "\0" ); echo 'Encrypted:' . "\n"; var_dump($encrypted); echo "\n"; echo 'Decrypted:' . "\n"; var_dump($decrypted);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.24, 7.4.0 - 7.4.12, 8.0.0alpha1 - rc2
Fatal error: Uncaught Error: Call to undefined function mcrypt_create_iv() in /in/CJfSn:8 Stack trace: #0 {main} thrown in /in/CJfSn on line 8
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_create_iv() in /in/CJfSn on line 8
Process exited with code 255.