Examples
MaxDB Functions
Examples
PHP Manual

## Basic usage

All examples in the MaxDB PHP documentation use the HOTELDB demo database from MaxDB. More about this database can be found at » http://maxdb.sap.com/doc/7_7/44/d8c25164bb38d0e10000000a1553f7/content.htm.

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.

This simple example shows how to connect, execute a query, print resulting rows and disconnect from a MaxDB database.

Example #1 MaxDB extension overview example

`<?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);
?>`

The following example shows how to bind variables to a SELECT INTO statement.

Example #2 Example for use of SELECT INTO statements

`<?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);
?>`

The following example shows how to use MaxDB database procedures.

Example #3 Example fore using database procedures

`<?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);
?>`