| 警告 |
本扩展模块是实验性的。该模块的行为，包括其函数的名称以及其它任何关于此模块的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。我们提醒您在使用本扩展模块的同时自担风险。 |
openssl_private_encrypt() encrypts data with private key and stores the result into crypted. Encrypted data can be decrypted via openssl_public_decrypt(). padding defaults to OPENSSL_PKCS1_PADDING, but can also be OPENSSL_NO_PADDING.
如果成功则返回 TRUE，失败则返回 FALSE。
This function can be used e.g. to sign data (or its hash) to prove that it is not written by someone else.
See also openssl_public_decrypt() and openssl_public_encrypt().