PHP+Mysql開(kāi)發(fā)分頁(yè)之簡(jiǎn)單的分頁(yè)條
<?php
/**1,傳入頁(yè)碼**/
$page = $_GET["p"];
/**2,根據(jù)頁(yè)碼取出數(shù)據(jù)：php->mysql的處理**/
$host = "localhost";
$username = "root";
$password = "123456789";
$db = "bbs2";
//連接數(shù)據(jù)庫(kù)
$conn = mysql_connect($host,$username,$password);
if (!$conn) {
// echo "數(shù)據(jù)庫(kù)連接失敗";
exit;
}
//選擇要操作的數(shù)據(jù)庫(kù)
mysql_select_db($db);
//設(shè)置數(shù)據(jù)庫(kù)編碼格式
mysql_query("SET NAMES UTF8");
//編寫sql獲取分頁(yè)數(shù)據(jù)SELECT * FROM 表名 LIMIT 起始位置,顯示條數(shù)
$sql = "select * from test limit ".($page-1) * 10 .",10 ";
//把sql語(yǔ)句傳送到數(shù)據(jù)中
$result = mysql_query($sql);
//處理數(shù)據(jù)
echo "<table border=1 cellspacing=0 width=15%>";
echo "<tr><td>ID</td><td>名字</td><td>性別</td></tr>";
while($row = mysql_fetch_assoc($result)){
echo "<tr>";
echo "<td>{$row['id']}</td>";
echo "<td>{$row['name']}</td>";
echo "<td>{$row['sex']}</td>";
echo "<tr>";
}$page_banner="<a href='".$_SERVER['PHP_SELF']."?p=".($page-1)."'>上一頁(yè)</a>";
$page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($page+1)."'>下一頁(yè)</a>";
echo $page_banner;
?>創(chuàng)建函數(shù)$page_banner
$_SERVER[’PHP_SELF’]在開(kāi)發(fā)的時(shí)候常會(huì)用到，一般用來(lái)引用當(dāng)前網(wǎng)頁(yè)地址
$page_banner="<a href='".$_SERVER['PHP_SELF']."?p=".($page-1)."'>上一頁(yè)</a>"; $page_banner.="<a href='".$_SERVER['PHP_SELF']."?p=".($page+1)."'>下一頁(yè)</a>";
$page當(dāng)前頁(yè)面-1就是上一頁(yè)
$page當(dāng)前頁(yè)面+1就是下一頁(yè)
本章難點(diǎn)
$_SERVER獲取當(dāng)前的網(wǎng)址
