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players mysql php

mysql

mysql -u root -p

create database players;

use players;

GRANT SELECT,UPDATE,INSERT,DELETE ON players.* TO ‘user’@’localhost’;

CREATE TABLE`players` ( `id` int(11) NOT NULL auto_increment, `firstname` varchar(32) NOT NULL, `lastname` varchar(32) NOT NULL, PRIMARY KEY(`id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=5 ;

INSERT INTO players (firstname,lastname) VALUES(‘孝彦’, ‘藤本’);
INSERT INTO players (firstname,lastname) VALUES(‘かよ子’, ‘藤本’);
INSERT INTO players (firstname,lastname) VALUES(‘太郎’, ‘藤本’);
INSERT INTO players (firstname,lastname) VALUES(‘花子’, ‘藤本’);

mkdir /var/www/html/playes
vi /var/www/html/players/connect-db.php

<?php
// mysql server 接続設定情報
$server= 'localhost';
$user= 'user';
$pass= 'パスワード';
$db= 'players';

// データーベース接続手続
$mysqli= new mysqli($server, $user, $pass, $db);

// エラーの表示 開発が終了したら削除する
mysqli_report(MYSQLI_REPORT_ERROR);
?>


vi /var/www/html/players/view.php
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>View Records</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>

<h1>View Records</h1>

<p><b>View All</b> |<a href="view-paginated.php">View Paginated</a></p>

<?php
// connect to the database
include('connect-db.php');

// get the records from the database
//$resultにデーターがあれば
if ($result= $mysqli->query("SELECT * FROM players ORDER BY id"))
{
// display records if there are records to display
//レコードが0以上であれば
if ($result->num_rows> 0)
{
// display records in a table
// テーブとして表示する
echo"<table border='1' cellpadding='10'>";

// set table headers
//テーブルのヘッダー表示
echo"<tr><th>ID</th><th>First Name</th><th>Last Name</th><th></th><th></th></tr>";

while ($row= $result->fetch_object())
{
// set up a row for each record
//テーブルのデーター表示
echo"<tr>";
echo"<td>" . $row->id. "</td>";
echo"<td>" . $row->firstname. "</td>";
echo"<td>" . $row->lastname. "</td>";
echo"<td><a href='records.php?id=" . $row->id. "'>Edit</a></td>";
echo"<td><a href='delete.php?id=" . $row->id. "'>Delete</a></td>";
echo"</tr>";
}

echo"</table>";
}
// if there are no records in the database, display an alert message
else
{
echo"No results to display!";
}
}
// show an error if there is an issue with the database query
else
{
echo"Error: " . $mysqli->error;
}

// close database connection
// データーベース接続終了処理
$mysqli->close();

?>

<a href="records.php">Add New Record</a>
</body>
</html>


vi /var/www/html/players/view-paginated.php

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>レコードを見る</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>

<h1>レコードを見る</h1>

<?php
// connect to the database
//データーベース接続処理
include('connect-db.php');

// number of results to show per page
//1ページに表示するデーターの行数
$per_page= 3;

// figure out the total pages in the database
//データベースの総ページ数を把握する
if ($result= $mysqli->query("SELECT * FROM players ORDER BY id"))
{
if ($result->num_rows!= 0)
{
//全レコードの行数を得る
$total_results= $result->num_rows;
// ceil() returns the next highest integer value by rounding up value if necessary
//ページ数を得る
$total_pages= ceil($total_results/ $per_page);
 
// check if the 'page' variable is set in the URL (ex: view-paginated.php?page=1)
// 既にpage変数が設定されているかどうかを確認する
if (isset($_GET['page']) && is_numeric($_GET['page']))
{
//既に設定されている(現在のページ)を$show_page変数に入力
$show_page= $_GET['page'];

// make sure the $show_page value is valid
//$show_pageの値が有効ならば
if ($show_page> 0 && $show_page<= $total_pages)
{
//現在のページの先頭レコード数を設定
$start= ($show_page-1) * $per_page;
//現在のページの最終レコード数を設定
$end= $start+ $per_page;
}
else
{
// error - show first set of results
//プログラム開始時の設定
$start= 0;
$end= $per_page;
}
}
else
{
// if page isn't set, show first set of results
$start= 0;
$end= $per_page;
}

// display pagination
echo"<p><a href='view.php'>View All</a> | <b>View Page:</b> ";

//ページ数をカウントする ページ数を表示する
for ($i= 1; $i<= $total_pages; $i++)
{
if (isset($_GET['page']) && $_GET['page'] == $i)
{
//ページ数を順番に水平に表示していく
echo $i. " ";
}
else
{
//ページ数のリンクを順番に表示する
echo"<a href='view-paginated.php?page=$i'>$i</a> ";
}
}
echo"</p>";

// display data in table
echo"<table border='1' cellpadding='10'>";
echo"<tr> <th>ID</th> <th>First Name</th> <th>Last Name</th> <th></th> <th></th></tr>";

// loop through results of database query, displaying them in the table
//該当レコード表示していく
for ($i= $start; $i< $end; $i++)
{
// make sure that PHP doesn't try to show results that don't exist
//該当レコードの最終ならば表示を終了する
if ($i== $total_results) { break; }

// find specific row
//該当レコードのデーターを取得
$result->data_seek($i);
$row= $result->fetch_row();

// echo out the contents of each row into a table
echo"<tr>";
echo'<td>' . $row[0] . '</td>';
echo'<td>' . $row[1] . '</td>';
echo'<td>' . $row[2] . '</td>';
//編集の場合は該当レコードの編集プログラムに移る
echo'<td><a href="records.php?id=' . $row[0] . '">Edit</a></td>';
//削除の場合は該当レコードの削除プログラムに移る
echo'<td><a href="delete.php?id=' . $row[0] . '">Delete</a></td>'; echo"</tr>"; } // close table> echo"</table>"; } else { echo"No results to display!"; } } // error with the query else { echo"Error: " . $mysqli->error; } // close database connection $mysqli->close(); ?> <a href="records.php">Add New Record</a> </body> </html> </html> records.php(新しいレコードの作成/既存のレコードの編集)vi /var/www/html/players/records.php

vi /var/www/html/playes/records.php

<?php
/*
Allows the user to both create new records and edit existing records
//ユーザーが新しいレコードを作成して既存のレコードを編集できるようにする
*/

// connect to the database
include("connect-db.php");

// creates the new/edit record form
//新しい/編集レコードフォームを作成する
// since this form is used multiple times in this file, I have made it a function that is easily reusable
//このフォームはこのファイルで複数回使用されているので、簡単に再利用できる関数にしました
function renderForm($first= '', $last='', $error= '', $id= '')
{ ?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>
<?phpif ($id!= '') { echo"Edit Record"; } else { echo"New Record"; } ?>
</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>
<h1><?phpif ($id!= '') { echo"Edit Record"; } else { echo"New Record"; } ?></h1>
<?phpif ($error!= '') {
echo"<div style='padding:4px; border:1px solid red; color:red'>" . $error
. "</div>";
} ?>

<form action="" method="post">
<div>
<?phpif ($id!= '') { ?>
<input type="hidden" name="id" value="<?php echo $id; ?>" />
<p>ID:<?php echo $id; ?></p>
<?php} ?>

<strong>First Name: *</strong> <input type="text" name="firstname"
value="<?php echo $first; ?>"/><br/>
<strong>Last Name: *</strong> <input type="text" name="lastname"
value="<?php echo $last; ?>"/>
<p>* required</p>
<input type="submit" name="submit" value="Submit" />
</div>
</form>
</body>
</html>

<?php}



/*

EDIT RECORD

*/
// if the 'id' variable is set in the URL, we know that we need to edit a record
if (isset($_GET['id']))
{
// if the form's submit button is clicked, we need to process the form
if (isset($_POST['submit']))
{
// make sure the 'id' in the URL is valid
if (is_numeric($_POST['id']))
{
// get variables from the URL/form
$id= $_POST['id'];
$firstname= htmlentities($_POST['firstname'], ENT_QUOTES);
$lastname= htmlentities($_POST['lastname'], ENT_QUOTES);

// check that firstname and lastname are both not empty
if ($firstname== '' || $lastname== '')
{
// if they are empty, show an error message and display the form
$error= 'ERROR: Please fill in all required fields!';
renderForm($firstname, $lastname, $error, $id);
}
else
{
// if everything is fine, update the record in the database
if ($stmt= $mysqli->prepare("UPDATE players SET firstname = ?, lastname = ?
WHERE id=?"))
{
$stmt->bind_param("ssi", $firstname, $lastname, $id);
$stmt->execute();
$stmt->close();
}
// show an error message if the query has an error
else
{
echo"ERROR: could not prepare SQL statement.";
}

// redirect the user once the form is updated
header("Location: view.php");
}
}
// if the 'id' variable is not valid, show an error message
else
{
echo"Error!";
}
}
// if the form hasn't been submitted yet, get the info from the database and show the form
else
{
// make sure the 'id' value is valid
if (is_numeric($_GET['id']) && $_GET['id'] > 0)
{
// get 'id' from URL
$id= $_GET['id'];

// get the recod from the database
if($stmt= $mysqli->prepare("SELECT * FROM players WHERE id=?"))
{
$stmt->bind_param("i", $id);
$stmt->execute();

$stmt->bind_result($id, $firstname, $lastname);
$stmt->fetch();

// show the form
renderForm($firstname, $lastname, NULL, $id);

$stmt->close();
}
// show an error if the query has an error
else
{
echo"Error: could not prepare SQL statement";
}
}
// if the 'id' value is not valid, redirect the user back to the view.php page
else
{
header("Location: view.php");
}
}
}



/*

NEW RECORD

*/
// if the 'id' variable is not set in the URL, we must be creating a new record
else
{
// if the form's submit button is clicked, we need to process the form
if (isset($_POST['submit']))
{
// get the form data
$firstname= htmlentities($_POST['firstname'], ENT_QUOTES);
$lastname= htmlentities($_POST['lastname'], ENT_QUOTES);

// check that firstname and lastname are both not empty
if ($firstname== '' || $lastname== '')
{
// if they are empty, show an error message and display the form
$error= 'ERROR: Please fill in all required fields!';
renderForm($firstname, $lastname, $error);
}
else
{
// insert the new record into the database
if ($stmt= $mysqli->prepare("INSERT players (firstname, lastname) VALUES (?, ?)"))
{
$stmt->bind_param("ss", $firstname, $lastname);
$stmt->execute();
$stmt->close();
}
// show an error if the query has an error
else
{
echo"ERROR: Could not prepare SQL statement.";
}

// redirec the user
header("Location: view.php");
}

}
// if the form hasn't been submitted yet, show the form
else
{
renderForm();
}
}

// close the mysqli connection
$mysqli->close();
?>

vi /var/www/html/players/delete.php

<?php

// connect to the database
include('connect-db.php');

// confirm that the 'id' variable has been set
if (isset($_GET['id']) && is_numeric($_GET['id']))
{
// get the 'id' variable from the URL
$id= $_GET['id'];

// delete record from database
if ($stmt= $mysqli->prepare("DELETE FROM players WHERE id = ? LIMIT 1"))
{
$stmt->bind_param("i",$id);
$stmt->execute();
$stmt->close();
}
else
{
echo"ERROR: could not prepare SQL statement.";
}
$mysqli->close();

// redirect user after delete is successful
header("Location: view.php");
}
else
// if the 'id' variable isn't set, redirect the user
{
header("Location: view.php");
}

?>


http://localhost/players/view.php

参考 http://www.killersites.com/community/index.php?/topic/3064-basic-php-system-view-edit-add-delete-records-with-mysqli/
 
 
 
 

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