©
本文档使用 PHP中文网手册 发布
(PHP 5)
mysqli::options -- mysqli_options — Set options
面向对象风格
$option
, mixed $value
)过程化风格
$link
, int $option
, mixed $value
)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。
option
The 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. |
value
The 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 option was added.
|
See mysqli_real_connect() .
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。
[#1] king at bobfish dot org [2008-02-14 12:05:26]
Example on using mysqli_options to increase size of max_allowed_packet for working with big blobs.
function dbConnect()
{
$user = 'jomama';
$pass = 'cartoon';
$dbName = 'LifeCycle';
$host = 'localhost';
$mysqli = mysqli_init();
mysqli_options($mysqli,MYSQLI_READ_DEFAULT_GROUP,
"max_allowed_packet=50M");
mysqli_real_connect($mysqli,$host, $user, $pass,$dbName)
or die ('<P>Unable to connect</P>');
return $mysqli;
}
[#2] fluppy [2007-03-07 14:46:03]
Here es little example to create a SSL Connection
<?php
$db = mysqli_init();
$db->ssl_set('server-key.pem','server-cert.pem',
'cacert.pem',NULL,NULL);
$db->real_connct('localhost','root','','mydb');
//Here some query
$db->close();
?>