Php 每页显示5个结果
我是新手,希望有人能帮助我,我有一个mysql数据库,有4个字段“id、日期、名称、评论” 我有以下php文件:Php 每页显示5个结果,php,jquery,ajax,Php,Jquery,Ajax,我是新手,希望有人能帮助我,我有一个mysql数据库,有4个字段“id、日期、名称、评论” 我有以下php文件: <html> <head> <title>Paging Using PHP</title> </head> <body> <?php $dbhost = 'localhost'; $dbuser = 'USERNAME'; $dbpass = 'PASSWORD'; $rec_limit = 5; $co
<html>
<head>
<title>Paging Using PHP</title>
</head>
<body>
<?php
$dbhost = 'localhost';
$dbuser = 'USERNAME';
$dbpass = 'PASSWORD';
$rec_limit = 5;
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db('DATABASE_NAME');
/* Get total number of records */
$sql = "SELECT count(id) FROM comments ";
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
die('Could not get data: ' . mysql_error());
}
$row = mysql_fetch_array($retval, MYSQL_NUM );
$rec_count = $row[0];
if( isset($_GET{'page'} ) )
{
$page = $_GET{'page'} + 1;
$offset = $rec_limit * $page ;
}
else
{
$page = 0;
$offset = 0;
}
$left_rec = $rec_count - ($page * $rec_limit);
$sql = "SELECT * FROM comments ORDER BY id DESC";
"FROM comments ".
"LIMIT $offset, $rec_limit";
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
die('Could not get data: ' . mysql_error());
}
while($row = mysql_fetch_array($retval, MYSQL_ASSOC))
{
echo "<strong>Date :{$row['date']} </strong><br> ".
"<strong>Name : {$row['name']} </strong><br> ".
"Comment : {$row['comment']} <br> ".
"<br><br>";
}
if( $page > 0 )
{
$last = $page - 2;
echo "<a href=\"$_PHP_SELF?page=$last\">Previous Page</a> |";
echo "<a href=\"$_PHP_SELF?page=$page\">Next Page</a>";
}
else if( $page == 0 )
{
echo "<a href=\"$_PHP_SELF?page=$page\">Next Page</a>";
}
else if( $left_rec < $rec_limit )
{
$last = $page - 2;
echo "<a href=\"$_PHP_SELF?page=$last\">Previous Page</a>";
}
mysql_close($conn);
?>
使用PHP进行分页
这是工作代码。复制粘贴即可。做你的回声。若你们把它放在桌子上,它会很好看的
<?php
//DB CONNECTION HERE
$currentPage = $_SERVER["PHP_SELF"];
$rec_limit = 5;//This will display 5 result per page
$pageNum_view = 0;
if (isset($_GET['pageNum_view'])) {
$pageNum_view = $_GET['pageNum_view'];
}
$startRow_view = $pageNum_view * $rec_limit;
mysql_select_db($dbhost, $dbuser, dbpass);
$query_view = "SELECT * FROM comments ORDER BY id DESC";
$query_limit_view = sprintf("%s LIMIT %d, %d", $query_view, $startRow_view, $rec_limit);
$view = mysql_query($query_limit_view, $dbconnect) or die(mysql_error());
$row_view = mysql_fetch_assoc($view);
if (isset($_GET['totalRows_view'])) {
$totalRows_view = $_GET['totalRows_view'];
} else {
$all_view = mysql_query($query_view);
$totalRows_view = mysql_num_rows($all_view);
}
$totalPages_view = ceil($totalRows_view/$rec_limit)-1;
$queryString_view = "";
if (!empty($_SERVER['QUERY_STRING'])) {
$params = explode("&", $_SERVER['QUERY_STRING']);
$newParams = array();
foreach ($params as $param) {
if (stristr($param, "pageNum_view") == false &&
stristr($param, "totalRows_view") == false) {
array_push($newParams, $param);
}
}
if (count($newParams) != 0) {
$queryString_view = "&" . htmlentities(implode("&", $newParams));
}
}
$queryString_view = sprintf("&totalRows_view=%d%s", $totalRows_view,
$queryString_view);
?>
//Here echo
<?php if ($pageNum_view > 0) { // Show if not first page ?>
<a href="<?php printf("%s?pageNum_view=%d%s", $currentPage, 0,
$queryString_view); ?>">FIRST</a>
<?php } // Show if not first page ?>
<?php if ($pageNum_view > 0) { // Show if not first page ?>
<a href="<?php printf("%s?pageNum_view=%d%s", $currentPage, max(0, $pageNum_view - 1), $queryString_view); ?>">PREVIOUS</a>
<?php } // Show if not first page ?>
<?php if ($pageNum_view < $totalPages_view) { // Show if not last page ?>
<a href="<?php printf("%s?pageNum_view=%d%s", $currentPage, min($totalPages_view, $pageNum_view + 1), $queryString_view); ?>">NEXT</a>
<?php } // Show if not last page ?>
<?php if ($pageNum_view < $totalPages_view) { // Show if not last page ?>
<a href="<?php printf("%s?pageNum_view=%d%s", $currentPage, $totalPages_view, $queryString_view); ?>">LAST</a>
<?php } // Show if not last page ?>
<?php
mysql_free_result($view);
?>
//这里回音
Er。。。搜索。它们不再得到维护。看到了吗?相反,学习,并使用or-将帮助您决定哪一个。如果您选择PDO,.您的sql语法在这里是不正确的$sql=“SELECT*FROM comments ORDER BY id DESC”;“来自评论”。“LIMIT$offset,$rec\U LIMIT”
它可能需要是$sql=“SELECT*FROM comments ORDER BY id DESC”$sql.=“限额$offset,$rec_LIMIT”代码>