(PHP 5, PHP 7)
mysqli::options -- mysqli_options — Set options
面向对象风格
过程化风格
Used to set extra connect options and affect behavior for a connection.
This function may be called multiple times to set several options.
mysqli_options() should be called after mysqli_init() and before mysqli_real_connect().
link仅以过程化样式：由mysqli_connect() 或 mysqli_init() 返回的链接标识。
optionThe option that you want to set. It can be one of the following values:
| Name | Description |
|---|---|
MYSQLI_OPT_CONNECT_TIMEOUT |
connection timeout in seconds (supported on Windows with TCP/IP since PHP 5.3.1) |
MYSQLI_OPT_LOCAL_INFILE |
enable/disable use of LOAD LOCAL INFILE |
MYSQLI_INIT_COMMAND |
command to execute after when connecting to MySQL server |
MYSQLI_READ_DEFAULT_FILE |
Read options from named option file instead of my.cnf |
MYSQLI_READ_DEFAULT_GROUP |
Read options from the named group from my.cnf
or the file specified with MYSQL_READ_DEFAULT_FILE.
|
MYSQLI_SERVER_PUBLIC_KEY |
RSA public key file used with the SHA-256 based authentication. |
MYSQLI_OPT_NET_CMD_BUFFER_SIZE |
The size of the internal command/network buffer. Only valid for mysqlnd. |
MYSQLI_OPT_NET_READ_BUFFER_SIZE |
Maximum read chunk size in bytes when reading the body of a MySQL command packet. Only valid for mysqlnd. |
MYSQLI_OPT_INT_AND_FLOAT_NATIVE |
Convert integer and float columns back to PHP numbers. Only valid for mysqlnd. |
MYSQLI_OPT_SSL_VERIFY_SERVER_CERT |
valueThe value for the option.
成功时返回 TRUE， 或者在失败时返回 FALSE。
| 版本 | 说明 |
|---|---|
| 5.5.0 |
The MYSQLI_SERVER_PUBLIC_KEY and
MYSQLI_SERVER_PUBLIC_KEY options were added.
|
| 5.3.0 |
The MYSQLI_OPT_INT_AND_FLOAT_NATIVE,
MYSQLI_OPT_NET_CMD_BUFFER_SIZE,
MYSQLI_OPT_NET_READ_BUFFER_SIZE, and
MYSQLI_OPT_SSL_VERIFY_SERVER_CERT options were
added.
|
Note:
MySQLnd 总是使用服务器的默认字符集。此字符集在连接握手／认证时发送，并被 mysqlnd 使用。
Libmysqlclient 使用 my.cnf 中的默认字符集或者由在调用 mysqli_init() 之后，mysqli_real_connect() 之前先调用 mysqli_options() 来指定。