连接到一个 MySQL 数据库:
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
// some code
?>脚本一结束，就会关闭连接。如需提前关闭连接，请使用 mysql_close() 函数。
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
// some code
mysql_close($con);
?>
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
if (mysql_query("CREATE DATABASE my_db",$con))
{
echo "Database created";
}
else
{
echo "Error creating database: " . mysql_error();
}
mysql_close($con);
?>
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
// Create database
if (mysql_query("CREATE DATABASE my_db",$con))
{
echo "Database created";
}
else
{
echo "Error creating database: " . mysql_error();
}
// Create table in my_db database
mysql_select_db("my_db", $con);
$sql = "CREATE TABLE Persons
(
FirstName varchar(15),
LastName varchar(15),
Age int
)";
mysql_query($sql,$con);
mysql_close($con);
?>插入数据:
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
mysql_select_db("my_db", $con);
mysql_query("INSERT INTO Persons (FirstName, LastName, Age)
VALUES (‘Peter‘, ‘Griffin‘, ‘35‘)");
mysql_query("INSERT INTO Persons (FirstName, LastName, Age)
VALUES (‘Glenn‘, ‘Quagmire‘, ‘33‘)");
mysql_close($con);
?><?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
mysql_select_db("my_db", $con);
$sql="INSERT INTO Persons (FirstName, LastName, Age)
VALUES
(‘$_POST[firstname]‘,‘$_POST[lastname]‘,‘$_POST[age]‘)";
if (!mysql_query($sql,$con))
{
die(‘Error: ‘ . mysql_error());
}
echo "1 record added";
mysql_close($con)
?><?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
mysql_select_db("my_db", $con);
$result = mysql_query("SELECT * FROM Persons");
while($row = mysql_fetch_array($result))
{
echo $row[‘FirstName‘] . " " . $row[‘LastName‘];
echo "<br />";
}
mysql_close($con);
?><?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
mysql_select_db("my_db", $con);
$result = mysql_query("SELECT * FROM Persons");
echo "<table border=‘1‘>
<tr>
<th>Firstname</th>
<th>Lastname</th>
</tr>";
while($row = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row[‘FirstName‘] . "</td>";
echo "<td>" . $row[‘LastName‘] . "</td>";
echo "</tr>";
}
echo "</table>";
mysql_close($con);
?><html>
<body>
<?php
$conn=odbc_connect(‘northwind‘,‘‘,‘‘);
if (!$conn)
{exit("Connection Failed: " . $conn);}
$sql="SELECT * FROM customers";
$rs=odbc_exec($conn,$sql);
if (!$rs)
{exit("Error in SQL");}
echo "<table><tr>";
echo "<th>Companyname</th>";
echo "<th>Contactname</th></tr>";
while (odbc_fetch_row($rs))
{
$compname=odbc_result($rs,"CompanyName");
$conname=odbc_result($rs,"ContactName");
echo "<tr><td>$compname</td>";
echo "<td>$conname</td></tr>";
}
odbc_close($conn);
echo "</table>";
?>
</body>
</html>原文：http://blog.csdn.net/coslay/article/details/22755789