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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 288721 $ -->
<chapter xml:id="maxdb.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.examples;
<section xml:id="maxdb.examples-basic">
<para>
All examples in the MaxDB PHP documentation use the HOTELDB demo database from MaxDB. More about this
database can be found at <link xlink:href="&url.maxdb.sampledb;">&url.maxdb.sampledb;</link>.
</para>
<para>
To use the examples in the MaxDB PHP documentation, you have to load the tutorial data into your database.
Then you have to set maxdb.default_db in &php.ini; to the database that contains the tutorial data.
</para>
<para>
This simple example shows how to connect, execute a query, print
resulting rows and disconnect from a MaxDB database.
<example>
<title>MaxDB extension overview example</title>
<programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* Performing SQL query */
$query = "SELECT * FROM hotel.city";
$result = maxdb_query($link, $query) or die("Query failed : " . maxdb_error());
/* Printing results in HTML */
echo "<table>\n";
while ($line = maxdb_fetch_array($result, MAXDB_ASSOC)) {
echo " <tr>\n";
foreach ($line as $col_value) {
echo " <td>$col_value</td>\n";
}
echo " </tr>\n";
}
echo "</table>\n";
/* Free resultset */
maxdb_free_result($result);
/* Closing connection */
maxdb_close($link);
?>
]]>
</programlisting>
</example>
</para>
<para>
The following example shows how to bind variables to a SELECT INTO statement.
<example>
<title>Example for use of SELECT INTO statements</title>
<programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* Performing SQL query */
$stmt = maxdb_prepare ($link, "SELECT percentage INTO ? FROM hotel.countrylanguage where language = ?");
if (!$stmt) {
printf ("Prepare failed: %s\n", maxdb_error($link));
}
$name = "Mbundu";
maxdb_stmt_bind_param($stmt, 'ds', $percentage, $name);
maxdb_stmt_execute($stmt);
printf ("%f\n", $percentage);
maxdb_stmt_close ($stmt);
?>
]]>
</programlisting>
</example>
</para>
<para>
The following example shows how to use MaxDB database procedures.
<example>
<title>Example fore using database procedures</title>
<programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
maxdb_report (MAXDB_REPORT_OFF);
maxdb_query($link,"DROP DBPROC test_proc");
maxdb_report (MAXDB_REPORT_ERROR);
$query = "create dbproc test_proc (INOUT e_text char(72)) AS select * from SYSDBA.DUAL; fetch into :e_text;";
maxdb_query($link, $query);
/* Performing SQL query */
$stmt = maxdb_prepare ($link, "CALL test_proc (?)");
if (!$stmt) {
printf ("Prepare failed: %s\n", maxdb_error($link));
}
maxdb_stmt_bind_param($stmt, 's', $result);
maxdb_stmt_execute($stmt);
printf ("%s\n", $result);
maxdb_stmt_close ($stmt);
?>
]]>
</programlisting>
</example>
</para>
</section>
</chapter>
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