【发布时间】:2016-04-28 08:48:20
【问题描述】:
我想使用分页显示数据库中的记录,我正在使用它下面的代码显示限制,但是在移动下一页或记录时它无法加载。 如何修复分页移动下一个无法加载或移动到第 2 页?
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'admin121';
$rec_limit = 10;
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn ) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db('misdb');
$sql = "SELECT count(S_ID) FROM student";
$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 S_ID, LastName, FirstName ".
"FROM student ".
"LIMIT $offset, $rec_limit";
$retval = mysql_query( $sql, $conn );
if(! $retval ) {
die('Could not get data: ' . mysql_error());
}
while($row = mysql_fetch_array($retval, MYSQL_ASSOC)) {
echo "EMP ID :{$row['S_ID']} <br> ".
"EMP NAME : {$row['LastName']} <br> ".
"EMP SALARY : {$row['FirstName']} <br> ".
"--------------------------------<br>";
}
if( $page > 0 ) {
$last = $page - 2;
echo "<a href = \"$_PHP_SELF?page = $last\">Last 10 Records</a> |";
echo "<a href = \"$_PHP_SELF?page = $page\">Next 10 Records</a>";
} else if( $page == 1 ) {
echo "<a href = \"$_PHP_SELF?page = $page\">Next 10 Records</a>";
} else if( $left_rec < $rec_limit ) {
$last = $page - 2;
echo "<a href = \"$_PHP_SELF?page = $last\">Last 10 Records</a>";
}
【问题讨论】:
标签: pagination