openssl_encrypt

 string openssl_encrypt ( string $data , string $method , string $password [, bool $raw_output = false [, string $iv = "" ]] ) 

説明

Encrypts given data with given method and key, returns a raw or base64 encoded string
Warning: This function is currently not documented; only its argument list is available.

戻り値

Returns the encrypted string on success or FALSE on failure.