このページはうまく機能していますが、特定の文字のデータを表示するにはどうすればよいでしょうか?
ここに私が現在得たコードがあります
<html>
<head>
<title>MySQLi Read Records</title>
</head>
<body>
<?php
//include database connection
include 'db_connect.php';
//query all records from the database
$query = "select * from contacts";
//execute the query
$result = $mysqli->query( $query );
//get number of rows returned
$num_results = $result->num_rows;
//this will link us to our add.php to create new record
echo "<div><a href='add.php'>Create New Record</a></div>";
if( $num_results > 0){ //it means there's already a database record
echo "<table border='1'>";//start table
//creating our table heading
echo "<tr>";
echo "<th>Firstname</th>";
echo "<th>Lastname</th>";
echo "<th>Username</th>";
echo "<th>Action</th>";
echo "</tr>";
//loop to show each records
while( $row = $result->fetch_assoc() ){
//extract row
//this will make $row['firstname'] to
//just $firstname only
extract($row);
//creating new table row per record
echo "<tr>";
echo "<td>{$name}</td>";
echo "<td>{$surname}</td>";
echo "<td>{$mobile}</td>";
echo "<td>";
//just preparing the edit link to edit the record
echo "<a href='edit.php?id={$id}'>Edit</a>";
echo " / ";
//just preparing the delete link to delete the record
echo "<a href='#' onclick='delete_user( {$id} );'>Delete</a>";
echo "</td>";
echo "</tr>";
}
echo "</table>";//end table
}else{
//if database table is empty
echo "No records found.";
}
//disconnect from database
$result->free();
$mysqli->close();
?>
</body>
</html>
次のような複数のエントリを配置して、右の文字の下に表示したいと考えています
<h1>A</h1>
echo "<td>{$name}</td>";
echo "<td>{$surname}</td>";
echo "<td>{$mobile}</td>";
<h1>b</h1>
echo "<td>{$name}</td>";
echo "<td>{$surname}</td>";
echo "<td>{$mobile}</td>";
ECT ECT
私が達成しようとしているのは、a と b で始まるすべての姓を表示することです
このページでこのコードを見つけましたhttp://www.sitepoint.com/forums/showthread.php?303895-Display-Data-Beginning-with-a-Particular-Letter
しかし、どうすればこれを機能させることができますか?
私は初心者です(非常に)ので、どんな助けでも素晴らしいです私はチュートリアルを読んでみました私はそれを実際に使った方が良いと思います:)
更新* ** * ** * ** * ** * ** * ** * ** * ** * **
これはうまく機能していますが、今では1行しかリストされていません。これは私のコードです
<html>
<head>
<title>MySQLi Read Records</title>
</head>
<body>
<?php
//include database connection
include 'db_connect.php';
//query all records from the database
$query = " SELECT name,
surname,
mobile,
UPPER (LEFT(surname, 1)) AS letter
FROM contacts
ORDER BY surname";
//execute the query
$result = $mysqli->query( $query );
//get number of rows returned
$num_results = $result->num_rows;
//this will link us to our add.php to create new record
echo "<div><a href='add.php'>Create New Record</a></div>";
if( $num_results > 0){ //it means there's already a database record
echo "<table border='1'>";//start table
//creating our table heading
//loop to show each records
while( $row = $result->fetch_assoc() ){
//extract row
//this will make $row['firstname'] to
//just $firstname only
extract($row);
//creating new table row per record
if (!isset($lastLetter) || $lastLetter != $row['letter'])
{
echo '<h1>', $row['letter'], '</h1>';
$lastLetter = $row['letter'];
echo "{$surname}";
}
}
}else{
//if database table is empty
echo "No records found.";
}
//disconnect from database
$result->free();
$mysqli->close();
?>
</body>
</html>