我正在尝试重写部分代码，该代码显示要分页的表，以便在单独的页面上显示多于X条记录。我想用MySQLi重写代码，但我还没想到要使用存储结果函数。
如何使用下面的分页代码修复错误？因为我当前代码中的四个函数已被弃用，所以使用MYSQLi
这是旧代码，只显示一个有效的表。
<?php
$username = "some username";
$password = "some password";
$hostname = "localhost";
$databasename = "some database";
//connection to the database
$dbhandle = mysql_connect($hostname, $username, $password)
or die("Unable to connect to MySQL");
@mysqli_select_db($databasename,$dbhandle);
$tbl_name="appointments"; //your table name
// How many adjacent pages should be shown on each side?
$adjacents = 3;
/*
First get total number of rows in data table.
If you have a WHERE clause in your query, make sure you mirror it here.
*/
$query = "SELECT COUNT(*) as num FROM $tbl_name ";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages[num];
/* Setup vars for query. */
$targetpage = "pagination.php"; //your file name (the name of this file)
$limit = 10; //how many items to show per page
$page = $_GET['page'];
if($page)
$start = ($page - 1) * $limit; //first item to display on this page
else
$start = 0; //if no page var is given, set start to 0
/* Get data. */
$sql = "SELECT appointment, nature, duration, status, language, lep, vendor, insurance, client, appointmenttype FROM $tbl_name LIMIT $start, $limit";
$result = mysql_query($sql);
$num=mysql_numrows($result);
/* Setup page vars for display. */
if ($page == 0) $page = 1; //if no page var is given, default to 1.
$prev = $page - 1; //previous page is page - 1
$next = $page + 1; //next page is page + 1
$lastpage = ceil($total_pages/$limit); //lastpage is = total pages / items per page, rounded up.
$lpm1 = $lastpage - 1; //last page minus 1
/*
Now we apply our rules and draw the pagination object.
We're actually saving the code to a variable in case we want to draw it more than once.
*/
$pagination = "";
if($lastpage > 1)
{
$pagination .= "<div class=\"pagination\">";
//previous button
if ($page > 1)
$pagination.= "<a href=\"$targetpage?page=$prev\">� previous</a>";
else
$pagination.= "<span class=\"disabled\">� previous</span>";
//pages
if ($lastpage < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up
{
for ($counter = 1; $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>";
}
}
elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some
{
//close to beginning; only hide later pages
if($page < 1 + ($adjacents * 2))
{
for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href=\"$targetpage?page=$lpm1\">$lpm1</a>";
$pagination.= "<a href=\"$targetpage?page=$lastpage\">$lastpage</a>";
}
//in middle; hide some front and some back
elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
{
$pagination.= "<a href=\"$targetpage?page=1\">1</a>";
$pagination.= "<a href=\"$targetpage?page=2\">2</a>";
$pagination.= "...";
for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href=\"$targetpage?page=$lpm1\">$lpm1</a>";
$pagination.= "<a href=\"$targetpage?page=$lastpage\">$lastpage</a>";
}
//close to end; only hide early pages
else
{
$pagination.= "<a href=\"$targetpage?page=1\">1</a>";
$pagination.= "<a href=\"$targetpage?page=2\">2</a>";
$pagination.= "...";
for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?page=$counter\">$counter</a>";
}
}
}
//next button
if ($page < $counter - 1)
$pagination.= "<a href=\"$targetpage?page=$next\">next �</a>";
else
$pagination.= "<span class=\"disabled\">next �</span>";
$pagination.= "</div>\n";
}
?>
<?php
if (mysql_fetch_array($result) > 0) {
echo "<table cellpadding=10 cellspacing=3 border=1 class=sortable>";
echo "<tr><th>Date/Time</th><th>LEP</th> <th>Language</th> <th>Insurance</th><th>Nature</th><th>Duration</th><th>With</th><th>Vendor</th><th>Status</th><th>Appointment Type</th><th>Actions</th></tr>";
while($row = mysql_fetch_array($result))
{
// Your while loop here
require "appointmentrows.php";
echo '<td><a href="something">Edit</a> | <a href="something">Delete</a></td>';
echo "</tr>"; }
echo "</table>"; }
else {
// print status message
echo "No Appointments Found!";
}
$i=0;
while ($i < $num) {
$appointment=mysql_result($result,$i,"appointment");
$nature=mysql_result($result,$i,"nature");
$duration=mysql_result($result,$i,"duration");
$status=mysql_result($result,$i,"status");
$language=mysql_result($result,$i,"language");
$lep=mysql_result($result,$i,"lep");
$vendor=mysql_result($result,$i,"vendor");
$insurance=mysql_result($result,$i,"insurance");
$client=mysql_result($result,$i,"client");
$invoiceformat=mysql_result($result,$i,"invoiceformat");
$appointmenttype=mysql_result($result,$i,"appointmenttype");
$i++;
}
?>
<?=$pagination?>
以下是带分页的新代码，但我没有得到结果，看到没有找到任命！以及以下错误。
警告：mysql_fetch_array（）期望参数1为资源，布尔值为
警告：mysql_numrows（）期望参数1为资源，布尔值为
警告：mysql_fetch_array（）期望参数1为资源，布尔值为
div答案 0 :(得分：1)
一次处理问题1。 MySQL到MySQLi（程序）是非常相似的，虽然有些函数需要你的数据库连接作为第一个参数。
首先尝试一个简化示例，以使MySQLi函数正常工作：
$dbhandle = mysqli_connect($hostname, $username, $password);
mysqli_select_db($databasename,$dbhandle);
$sql = "SELECT * FROM $tbl_name";
$query = mysqli_query($dbhandle,$sql);
$pages = mysqli_fetch_array($query);
$total = mysqli_num_rows($query);
答案 1 :(得分：0)
function get_blog_posts($password,$username,$database_name,$page){
try {
$pdo_options[PDO::MYSQL_ATTR_INIT_COMMAND] = "SET NAMES utf8";
$database_connexion = new PDO('mysql:host=localhost;dbname='.$database_name, $username, $password, $pdo_options);
}
catch (Exception $e){
die('Erreur lors la connexion à la BDD: ' . $e->getMessage());
}
if(isset($page) and $page >= 0){ // That bug ! With the empty function, int(0) is considred to be empty, so It did not want to get into the loop. Damn.
$page = (int)$page;
$sql = "SELECT count(*) FROM billets";
$result = $database_connexion->prepare($sql);
$result->execute();
$number_of_rows = $result->fetchColumn();
// Calculate the number of the last page
$rows_per_page = 5;
$last_page = ceil($number_of_rows/$rows_per_page);
$page = (int)$page;
if($page > $last_page){
$page = $last_page;
}
if($page < 1){
$page = 1;
}
try {
// Now that whe have the limit, let's call our articles.
$limite_sql_query = 'LIMIT '.($page - 1)* $rows_per_page.','.$rows_per_page;
$final_query = "SELECT * FROM billets ORDER BY id DESC $limite_sql_query ";
$reponse = $database_connexion->query($final_query);
// For each article, we go in the looooooooooooop !
while ($articles = $reponse->fetch()) {
// Print your article here.
}
}
catch(Exception $e){
echo("Error: ".$e)
} if($page == 1){
$next_page = $page+1;
echo "</div> <div class='mc-floating'> <a class='mc-button mc-button-icon mc-clickable mc-button-raised mc-bg-blue mc-color-white' mc-action='next' href='{$_SERVER['PHP_SELF']}?page=$next_page'></a> </div>";
} else {
echo "</div> <div class='mc-floating'> <a class='mc-button mc-button-icon mc-clickable mc-button-raised mc-bg-blue mc-color-white' mc-action='home' href='{$_SERVER['PHP_SELF']}?page=1'></a> ";
$prevpage = $page-1;
echo "<a class='mc-button mc-button-icon mc-clickable mc-button-raised mc-bg-blue mc-color-white' mc-action='prev' href='{$_SERVER['PHP_SELF']}?page=$prevpage'></a> ";
$next_page = $page+1;
echo "<a class='mc-button mc-button-icon mc-clickable mc-button-raised mc-bg-blue mc-color-white' mc-action='next' href='{$_SERVER['PHP_SELF']}?page=$next_page'></a> </div>
";
}
$reponse->closeCursor();
}
}