与 PHP 和 Perl 使用 MySQL 数据库

Min Yang Jung
November 13, 2008

 Open a connection
<?php
$dbhost = 'localhost';
$dbhost = 'db.php-mysql-tutorial.com:3306';
$dbuser = 'root';
$dbpass = 'password';
$conn = mysql_connect($dbhost, $dbuser, $dbpass)
or die ('Error connecting to mysql');
$dbname = 'petstore';
mysql_select_db($dbname);
?>

 Close a connection
<?php
// it does nothing but closing
// a mysql database connection
mysql_close($conn);
?>

 SELECT
<?php
include 'config.php';
include 'opendb.php';
$query = "SELECT name, subject, message FROM contact";
$result = mysql_query($query);
while($row = mysql_fetch_row($result)) {
$name = $row[0];
$subject = $row[1];
$message = $row[2];
echo "Name :$name " .
"Subject : $subject " .
"Message : $row ";
}

 INSERT
<?php
include 'config.php';
include 'opendb.php';
mysql_select_db($mysql);
$query = "INSERT INTO user (host, user, password, select_pr
iv, insert_priv, update_ priv) VALUES ('localhost', 'phpcak
e', PASSWORD('mypass'), 'Y', 'Y', 'Y')";
mysql_query($query) or die('Error, insert query failed');
$query = "FLUSH PRIVILEGES";
mysql_query($query) or die('Error, insert query failed');
include 'closedb.php‘
?>

 Open a Connection
#!/usr/bin/perl
use Mysql;
print "Content-type: text/html nn";
$host = "localhost";
$database = "store";
$tablename = "inventory";
$user = "username";
$pw = "password";
$connect = Mysql->connect($host, $database, $user,
$pw);
$connect->selectdb($database);

 Close a Connection
# free result set
mysql_free_result($result);
# close the connection
mysql_close($connect);
?>

 SELECT
# DEFINE A MySQL QUERY
$myquery = "SELECT * FROM $tablename";
$execute = $connect->query($myquery);
$rownumber = $execute->numrows();
$fieldnumber = $execute->numfields();
# PRINT THE RESULTS
print $rownumber." ";
print $fieldnumber." ";

 INSERT
$myquery = "INSERT INTO $tablename (id, product,
quantity) VALUES (DEFAULT,'pineapples','15')";
$execute = $connect->query($myquery);
$affectedrows = $execute->affectedrows($myquery);
$lastid = $execute->insertid($myquery);
print $affectedrows." ";
print $lastid." ";

与 PHP 和 Perl 使用 MySQL 数据库

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