PHP: Php MySql Database Connection Test Script

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>MySQL Connection Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<style type="text/css">
#wrapper {
    width: 600px;
    margin: 20px auto 0;
    font: 1.2em Verdana, Arial, sans-serif;
}
input {
    font-size: 1em;
}
#submit {
    padding: 4px 8px;
}
</style>
</head>

<body>

<div id="wrapper">

<?php
    $action = htmlspecialchars($_GET['action'], ENT_QUOTES);
?>

<?php if (!$action) { ?>

    <h1>MySQL connection test</h1>

<form action="<?php echo $_SERVER['PHP_SELF']; ?>?action=test" id="mail" method="post">

    <table cellpadding="2">
        <tr>
            <td>Hostname</td>
            <td><input type="text" name="hostname" id="hostname" value="" size="30" tabindex="1" /></td>
            <td>(usually "localhost")</td>
        </tr>
        <tr>
            <td>Username</td>
            <td><input type="text" name="username" id="username" value="" size="30" tabindex="2" /></td>
            <td></td>
        </tr>
        <tr>
            <td>Password</td>
            <td><input type="text" name="password" id="password" value="" size="30" tabindex="3" /></td>
            <td></td>
        </tr>
        <tr>
            <td>Database</td>
            <td><input type="text" name="database" id="database" value="" size="30" tabindex="4" /></td>
            <td>(optional)</td>
        </tr>
        <tr>
            <td></td>
            <td><input type="submit" id="submit" value="Test Connection" tabindex="5" /></td>
            <td></td>
        </tr>
    </table>

</form>

<?php } ?>

<?php if ($action == "test") {

// The variables have not been adequately sanitized to protect against SQL Injection attacks: http://us3.php.net/mysql_real_escape_string

    $hostname = trim($_POST['hostname']);
    $username = trim($_POST['username']);
    $password = trim($_POST['password']);
    $database = trim($_POST['database']);

    $link = mysql_connect("$hostname", "$username", "$password");
        if (!$link) {
            echo "<p>Could not connect to the server '" . $hostname . "'</p>\n";
            echo mysql_error();
        }else{
            echo "<p>Successfully connected to the server '" . $hostname . "'</p>\n";
//            printf("MySQL client info: %s\n", mysql_get_client_info());
//            printf("MySQL host info: %s\n", mysql_get_host_info());
//            printf("MySQL server version: %s\n", mysql_get_server_info());
//            printf("MySQL protocol version: %s\n", mysql_get_proto_info());
        }
    if ($link && !$database) {
        echo "<p>No database name was given. Available databases:</p>\n";
        $db_list = mysql_list_dbs($link);
        echo "<pre>\n";
        while ($row = mysql_fetch_array($db_list)) {
             echo $row['Database'] . "\n";
        }
        echo "</pre>\n";
    }
    if ($database) {
    $dbcheck = mysql_select_db("$database");
        if (!$dbcheck) {
            echo mysql_error();
        }else{
            echo "<p>Successfully connected to the database '" . $database . "'</p>\n";
            // Check tables
            $sql = "SHOW TABLES FROM `$database`";
            $result = mysql_query($sql);
            if (mysql_num_rows($result) > 0) {
                echo "<p>Available tables:</p>\n";
                echo "<pre>\n";
                while ($row = mysql_fetch_row($result)) {
                    echo "{$row[0]}\n";
                }
                echo "</pre>\n";
            } else {
                echo "<p>The database '" . $database . "' contains no tables.</p>\n";
                echo mysql_error();
            }
        }
    }
}
?>

</div>
</body>
</html>

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Thursday, August 1, 2013

Php MySql Database Connection Test Script

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