(PHP 5 >= 5.3.0)
openssl_encrypt — Encrypts data
$data
   , string $method
   , string $password
   [, int $options = 0
   [, string $iv = ""
  ]] )Encrypts given data with given method and key, returns a raw or base64 encoded string
本函数还未编写文档,仅有参数列表。
data
     The data.
method
     The cipher method.
password
     The password.
options
      
          options can be one of
          OPENSSL_RAW_DATA,
          OPENSSL_ZERO_PADDING.
        
iv
     A non-NULL Initialization Vector.
   Returns the encrypted string on success 或者在失败时返回 FALSE.
  
   Emits an E_WARNING level error if an unknown cipher
   algorithm is passed in via the method parameter.
  
   Emits an E_WARNING level error if an empty value is passed
   in via the iv parameter.
  
| 版本 | 说明 | 
|---|---|
| 5.3.3 | The ivparameter was added. | 
| 5.4.0 | The raw_outputwas changed tooptions. |