(PECL maxdb >= 1.0)
Selects the default database for database queries
bool maxdb_select_db ( resource $link, string $dbname )
The maxdb_select_db() function selects the default database (specified by the dbname
parameter) to be used when performing queries against the database connection represented by the link
parameter.
Note:
This function should only be used to change the default database for the connection. You can select the default database with 4th parameter in maxdb_connect().
Returns:
Returns TRUE
on success or FALSE
on failure.
Examples:
Object oriented style
<?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s\n", maxdb_connect_error()); exit(); } /* return name of current default database */ if ($result = $maxdb->query("SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) { $row = $result->fetch_row(); printf("Default database is %s.\n", $row[0]); $result->close(); } /* change db to non existing db */ $maxdb->select_db("XXXXXXXX"); /* return name of current default database */ if ($result = $maxdb->query("SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) { $row = $result->fetch_row(); printf("Default database is %s.\n", $row[0]); $result->close(); } $maxdb->close(); ?>
Procedural style
<?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s\n", maxdb_connect_error()); exit(); } /* return name of current default database */ if ($result = maxdb_query($link, "SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) { $row = maxdb_fetch_row($result); printf("Default database is %s.\n", $row[0]); maxdb_free_result($result); } /* change db to non existing db */ maxdb_select_db($link, "XXXXXXXX"); /* return name of current default database */ if ($result = maxdb_query($link, "SELECT SERVERDB FROM USERS WHERE USERNAME='MONA'")) { $row = maxdb_fetch_row($result); printf("Default database is %s.\n", $row[0]); maxdb_free_result($result); } maxdb_close($link); ?>
See also:
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