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<p>mysqli_select_db
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<h1><A NAME="function.mysqli-select-db"></a>mysqli_select_db</h1>
<p><A NAME="AEN100428"></a>
<p>(PHP 5)mysqli_select_db
<p>(no version information, might be only in CVS)mysqli->select_db -- Selects the default database for database queries
<p><A NAME="AEN100432"></a><h2>Description</h2>bool mysqli_select_db (mysqli link, string dbname)
<p>- The mysqli_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.
<p><blockquote>
<p>Замечание: This function should only be used to change the default database for the connection. You can select the default database with 4th parameter in <a href="function.mysqli-connect.html">mysqli_connect()</a>.</blockquote>
<p><A NAME="AEN100450"></a><h2>Возвращаемые значения</h2>
<p>- Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
<p><A NAME="AEN100455"></a><h2>Смотрите также</h2>
<p>- <a href="function.mysqli-connect.html">mysqli_connect()</a> и <a href="function.mysqli-real-connect.html">mysqli_real_connect()</a>.
<p><A NAME="AEN100460"></a><h2>Примеры</h2>
<table>
<tr><td><A NAME="AEN100462"></a>
<p>Пример 1. Object oriented style
<table>
<tr><td><code>
<p>&lt;?
<p>$mysqli = new mysqli("localhost", "my_user", "my_password", "test");
<p>/*check connection*/
<p>if (mysqli_connect_errno()) {
<p>printf("Connect failed: %s\n", mysqli_connect_error());
<p>exit();
<p>}
<p>/*return name of current default database*/
<p>if ($result = $mysqli->query("SELECT DATABASE()")) {
<p>$row = $result->fetch_row();
<p>printf("Default database is %s.\n", $row[0]);
<p>$result->close();
<p>}
<p>/*change db to world db*/
<p>$mysqli->select_db("world");
<p>/*return name of current default database*/
<p>if ($result = $mysqli->query("SELECT DATABASE()")) {
<p>$row = $result->fetch_row();
<p>printf("Default database is %s.\n", $row[0]);
<p>$result->close();
<p>}
<p>$mysqli->close();
<p>?>
</code>
</table>
</table>
<table>
<tr><td><A NAME="AEN100465"></a>
<p>Пример 2. Procedural style
<table>
<tr><td><code>
<p>&lt;?
<p>$link = mysqli_connect("localhost", "my_user", "my_password", "test");
<p>/*check connection*/
<p>if (mysqli_connect_errno()) {
<p>printf("Connect failed: %s\n", mysqli_connect_error());
<p>exit();
<p>}
<p>/*return name of current default database*/
<p>if ($result = mysqli_query($link, "SELECT DATABASE()")) {
<p>$row = mysqli_fetch_row($result);
<p>printf("Default database is %s.\n", $row[0]);
<p>mysqli_free_result($result);
<p>}
<p>/*change db to world db*/
<p>mysqli_select_db($link, "world");
<p>/*return name of current default database*/
<p>if ($result = mysqli_query($link, "SELECT DATABASE()")) {
<p>$row = mysqli_fetch_row($result);
<p>printf("Default database is %s.\n", $row[0]);
<p>mysqli_free_result($result);
<p>}
<p>mysqli_close($link);
<p>?>
</code>
</table>
</table>
<p>Результат выполнения данного примера:
<table>
<tr><td>
<pre>
Default database is test.
<p>Default database is world.
</pre>
</table>
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<p><a href="index.html">Начало</a>
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<p>mysqli_rpl_query_type
<p><a href="ref.mysqli.html">Уровень выше</a>
<p>mysqli_send_long_data
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