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Sunday 20 September 2020

PHP example MySQL connection and query.

 

<!DOCTYPE html>
<html>
<body>

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "db_name";


// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error)
{

die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT id, field1,field2 FROM tableName";
$result = $conn->query($sql);

if ($result->num_rows > 0)
{
// output data of each row
while($row = $result->fetch_assoc())
{
echo "<br> id: ". $row["id"]. " - Field1: ". $row["field1"]. " - Field2:" . $row["field2"] . "<br>";
}
}
else
{
echo "0 results";
}

$conn->close();
?>

</body>
</html>

The connection details can of course be held in a separate file, with the following being added to the above php file;

<?php require_once('Connections/mysqltest.php'); ?>

The mysqltest.php file would look something like;
<?php
# FileName="Connection_php_mysql.htm"
# Type="MYSQL"
# HTTP="true"
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "db_name";
$mysqltest = mysql_pconnect($servername, $usernamet, $password) or trigger_error(mysql_error(),E_USER_ERROR);
?>

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