openssl_encrypt

(PHP 5 >= 5.3.0, PHP 7)

openssl_encrypt — Encrypts data

string openssl_encrypt ( string $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

data: The data.
method: The cipher method. For a list of available cipher methods, use openssl_get_cipher_methods().
password: The password.
options: options is a bitwise disjunction of the flags OPENSSL_RAW_DATA and 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 `iv` parameter was added.
5.4.0	The `raw_output` was changed to `options`.