# 示例

下面是一个在PHP和CUBRID建立连接的简单的例子。本节将覆盖最基本和最显著的特性。下面的代码需要连接CUBRID数据库，这意味着 CUBRID服务和 CUBRID Broker已经运行。

下面用demodb数据库作为例子举例。默认在安装时就创建了。确认此数据库已经被创建。

示例 #1 数据查询的例子

`<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=euc-kr">
</head>
<body>
<center>
<table border=2>
<?php
/**
* Set server information for CUBRID connection. host_ip is the IP
* address where the CUBRID Broker is installed (localhost in this
* example), and host_port is the port number of the CUBRID Broker.
* The port number is the default given during the installation.
* For details, see "Administrator's Guide."
*/
$host_ip = "localhost";
$host_port = 33000;
$db_name = "demodb";
/**
* Connect to CUBRID Server. Do not make the actual connection, but
* only retain the connection information. The reason for not making
* the actual connection is to handle transaction more efficiently
* in the 3-tier architecture.
*/
$cubrid_con = @cubrid_connect($host_ip, $host_port, $db_name);
if (!$cubrid_con) {
echo "Database Connection Error";
exit;
}
?>
<?php
$sql = "select sports, count(players) as players from event group by sports";
/**
* Request the CUBRID Server for the results of the SQL statement.
* Now make the actual connection to the CUBRID Server.
*/
$result = cubrid_execute($cubrid_con, $sql);
if ($result) {
/**
* Get the column names from the result set created by the SQL query.
*/
$columns = cubrid_column_names($result);
/**
* Get the number of columns in the result set created by the SQL query.
*/
$num_fields = cubrid_num_cols($result);
/**
* List the column names of the result set on the screen.
*/
echo "<tr>";
while (list($key, $colname) = each($columns)) {
echo "<td align=center>$colname</td>";
}
echo "</tr>";
/**
* Get the results from the result set.
*/
while ($row = cubrid_fetch($result)) {
echo "<tr>";
for ($i = 0; $i < $num_fields; $i++) {
echo "<td align=center>";
echo $row[$i];
echo "</td>";
}
echo "</tr>";
}
}
/**
* The PHP module in the CUBRID runs in a 3-tier architecture. Even when
* calling SELECT for transaction processing, it is processed as a part
* of the transaction. Therefore, the transaction needs to be rolled back
* by calling commit or rollback even though SELECT was called for smooth
* performance.
*/
cubrid_commit($cubrid_con);
cubrid_disconnect($cubrid_con);
?>
</body>
</html>`

示例 #2 数据插入的例子

`<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=euc- kr">
</head>
<body>
<center>
<table border=2>
<?php
/**
* host_ip is the IP address where the CUBRID Broker is installed
* host_port is the port number of the CUBRID Broker
* db_name is the name of CUBRID Database
*/
$host_ip = "localhost";
$host_port = 33000;
$db_name = "demodb";
$cubrid_con = @cubrid_connect($host_ip, $host_port, $db_name);
if (!$cubrid_con) {
echo "Database Connection Error";
exit;
}
?>
<?php
$sql = "insert into olympic (host_year,host_nation,host_city,"
. "opening_date,closing_date) values (2008, 'China', 'Beijing',"
. "to_date('08-08-2008','mm-dd- yyyy'),to_date('08-24-2008','mm-dd-yyyy')) ;";
$result = cubrid_execute($cubrid_con, $sql);
if ($result) {
/**
* Handled successfully, so commit.
*/
cubrid_commit($cubrid_con);
echo "Inserted successfully ";
} else {
/**
* Error occurred, so the error message is output and rollback is called.
*/
echo cubrid_error_msg();
cubrid_rollback($cubrid_con);
}
cubrid_disconnect($cubrid_con);
?>
</body>
</html>`
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