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私はちょうどPHPでのコーディングの初心者です。私は現在、ページネーションを持つシンプルなシステムに取り組んでいます。ページネーションを使用するときに、収集した結果を解放して接続を閉じる必要があるかどうか疑問に思っていましたか？ページネーションを使用するにはmysql_free_resultとmysql_closeを使用する必要がありますか？ PHP
ありがとうございます！リクエストが完了すると
<!DOCTYPE>
<html>
<head>
<title>View Records</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
</head>
<body>
<?php
include("header.php");
require('config.php');
$tableName = "tracking_records";
$targetpage = "view.php";
$limit = 10;
$query = "SELECT COUNT(*) as num FROM $tableName";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages['num'];
$stages = 10;
$getpage = (isset($_GET['page'])) ? (int)$_GET['page'] : 0;
$page = mysql_escape_string($getpage);
if($page){
$start = ($page - 1) * $limit;
}else{
$start = 0;
}
$query1 = "SELECT * FROM $tableName LIMIT $start, $limit";
$result = mysql_query($query1) or die(mysql_error());
if($page == 0){$page = 1;}
$prev = $page - 1;
$next = $page + 1;
$lastpage = ceil($total_pages/$limit);
$LastPagem1 = $lastpage - 1;
$paginate = '';
if($lastpage > 1){
$paginate .= "<div class='paginate'>";
if($page > 1){
$paginate.= "<a href='$targetpage?page=$prev'>previous</a>";
}else{
$paginate.= "<span class='disabled'>previous</span>";
}
if($lastpage < 7 + ($stages * 2)){
for($counter = 1; $counter <= $lastpage; $counter++){
if($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";
}
}
}
elseif($lastpage > 5 + ($stages * 2)){
if($page < 1 + ($stages * 2)){
for($counter = 1; $counter < 4 + ($stages * 2); $counter++){
if($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";
}
}
$paginate.= "...";
$paginate.= "<a href='$targetpage?page=$LastPagem1'>$LastPagem1</a>";
$paginate.= "<a href='$targetpage?page=$lastpage'>$lastpage</a>";
}
// Middle hide some front and some back
elseif($lastpage - ($stages * 2) > $page && $page > ($stages * 2)){
$paginate.= "<a href='$targetpage?page=1'>1</a>";
$paginate.= "<a href='$targetpage?page=2'>2</a>";
$paginate.= "...";
for($counter = $page - $stages; $counter <= $page + $stages; $counter++){
if($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";
}
}
$paginate.= "...";
$paginate.= "<a href='$targetpage?page=$LastPagem1'>$LastPagem1</a>";
$paginate.= "<a href='$targetpage?page=$lastpage'>$lastpage</a>";
}else{
$paginate.= "<a href='$targetpage?page=1'>1</a>";
$paginate.= "<a href='$targetpage?page=2'>2</a>";
$paginate.= "...";
for($counter = $lastpage - (2 + ($stages * 2)); $counter <= $lastpage; $counter++){
if($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";
}
}
}
}
if($page < $counter - 1){
$paginate.= "<a href='$targetpage?page=$next'>next</a>";
}else{
$paginate.= "<span class='disabled'>next</span>";
}
$paginate.= "</div>";
}
echo ' '.$total_pages.' Results';
echo $paginate;
?>
<table border='1'>
<tr>
<th>Contract #</th><th>Date</th>
<th>Vessel</th><th>Work Description</th>
<th>Specs PKG</th><th>Period of Performance</th>
<th>Required Delivery Date</th><th>IGE Amount</th>
<th>PM/SBS/MM</th><th>IDIQ</th>
<th>Solicitation #</th><th>RFP/RFQ Closing Date</th>
<th>RFP/RFQ Closing Time</th><th>Status</th>
<th>Award Amount</th><th>Award Date</th>
<th>Contractor</th><th>Remarks</th>
<th>Edit/Delete</th>
</tr>
<?php
while($row = mysql_fetch_array($result))
{
echo "<tr>
<td>$row[0]</td><td>$row[1]</td>
<td>$row[2]</td><td>$row[3]</td>
<td>$row[4]</td><td>$row[5]</td>
<td>$row[6]</td><td>$row[7]</td>
<td>$row[8]</td><td>$row[9]</td>
<td>$row[10]</td><td>$row[11]</td>
<td>$row[12]</td><td>$row[13]</td>
<td>$row[14]</td><td>$row[15]</td>
<td>$row[16]</td><td>$row[17]</td>
<td>
<a href='edit.php?cn=$row[0]'>Edit</a><br />
<a href='delete.php?cn=$row[0]' onClick=\"return confirm('Delete this record?')\";>Delete</a>
</td>
</tr>";
}
echo "</table>";
mysql_free_result($result);
mysql_close($connection);
?>
</body>
</html>
これらのタスクは、単一の要求が処理を完了したときに自動的に実行される必要はありません。デーモンのような永続的なプロセスを実装する場合にのみ必要です。そのようなコレクションは可能ではなく、メモリオーバーフローを防ぐために結果を自分で解放する必要があります。 – arkascha
@arkaschaありがとう！ – technoken