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<?php $key = '12345678'; $data = '12345678'; var_dump( bin2hex(mcrypt_encrypt(MCRYPT_DES, $key, $data, MCRYPT_MODE_ECB, '')), bin2hex(openssl_encrypt($data, 'des-ecb', $key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING, '')) );

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59.29 ms | 402 KiB | 5 Q