maxdb_real_connect
maxdb::real_connect
(PECL maxdb >= 1.0)
maxdb_real_connect -- maxdb::real_connect — Opens a connection to a MaxDB server
说明
过程化风格
maxdb_real_connect (
resource
$link [,
string $hostname [,
string $username [,
string $passwd [,
string $dbname [,
int $port = 0 [,
string $socket ]]]]]] ) :
bool
面向对象风格
maxdb::real_connect ([
string
$hostname [,
string $username [,
string $passwd [,
string $dbname [,
int $port = 0 [,
string $socket ]]]]]] ) :
bool
maxdb_real_connect() attempts to establish a connection to a MaxDB database engine running on hostname.
This function differs from maxdb_connect():
-
maxdb_real_connect() needs a valid resource which has to be created by function maxdb_init()
-
With function maxdb_options() you can set various options for connection.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
范例
Example #1 面向对象风格
<?php
/* create a connection object which is not connected */
$maxdb = maxdb_init();
/* set connection options */
$maxdb->options(MAXDB_UNICODE, "FALSE");
$maxdb->options(MAXDB_TIMEOUT, 5);
/* connect to server */
$maxdb->real_connect('localhost', 'MONA', 'RED', 'DEMODB');
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
printf ("Connection: %s\n.", $maxdb->host_info);
$maxdb->close();
?>
Example #2 过程化风格
<?php
/* create a connection object which is not connected */
$link = maxdb_init();
/* set connection options */
maxdb_options($link, MAXDB_UNICODE, "FALSE");
maxdb_options($link, MAXDB_TIMEOUT, 5);
/* connect to server */
maxdb_real_connect($link, 'localhost', 'MONA', 'RED', 'DEMODB');
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
printf ("Connection: %s\n.", maxdb_get_host_info($link));
maxdb_close($link);
?>
以上例程的输出类似于：
Connection: localhost <...>
参见
- maxdb_connect() - Open a new connection to the MaxDB server
- maxdb_init() - Initializes MaxDB and returns an resource for use with maxdb_real_connect
- maxdb_options() - Set options
- maxdb_ssl_set() - Used for establishing secure connections using SSL
- maxdb_close() - Closes a previously opened database connection
