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Kann mir jemand bei der Paginierung helfen? Ich versuche diesen Code bei Seitenumbruch und die Seiten werden angezeigt, aber wenn auf die Seiten wie Weiter oder die Nummer mit Links geklickt wird, gibt es einen Syntaxfehler.Paginierung auf PHP-Limit 50
„Sie haben einen Fehler in der SQL-Syntax, kontrollieren das Handbuch, die für die richtige Syntax zu Ihrer MySQL-Server-Version entspricht in der Nähe zu verwenden, in Zeile 1‚page = 2?‘“
Meine Tabellen Daten herum 250 und ich wollte es auf 50 Daten pro Seite begrenzen.
Hier ist mein Code: (Paginierung Abschnitt - ist das Problem)
<link rel="stylesheet" type="text/css" href="css/navbar.css">
<?php include 'navbar.php';?>
<br>
<?php
if(!isset($_GET['table'])){
echo 'You must assign a table to view.';
exit;
}
session_start();
//Connect here
$conn = mysqli_connect("localhost", "root", "", "dkusers");
$table = mysqli_real_escape_string($conn, $_GET['table']);
$fields = array();
$q = mysqli_query($conn, "SHOW COLUMNS FROM " . $table) or die(mysqli_error($conn));
while($r = mysqli_fetch_assoc($q)) $fields[count($fields)] = $r['Field'];
echo '<b><font size="4">Table: </b>', $table, '</font><br>';
// -----------------INSERT-----------------
if(isset($_POST['action']) && $_POST['action'] == "Insert"){
if(!isset($_POST['insert'])){
echo '<h3>Insert Row</h3>';
echo '<form method="post"><input type="hidden" name="action" value="' . $_POST['action'] . '" />';
echo '<table border="1" cellpadding="7"><tr><th>Field</th><th>Value</th><th>MD5</th></tr>';
foreach($fields as $key => $value){
echo '<tr><td>' . $value . ':</td><td><input type="text" name="field_' . $value . '" /></td><td><input type="checkbox" name="md5_' . $value . '" /></td></tr>';
}
echo '<tr><td><input type="submit" name="insert" value="Submit" /></td><td colspan="2"><a href="?table=' . $_GET['table'] . '">Back</a></td></tr></table></form>';
exit;
}else{
$first = true;
$query = "INSERT INTO " . $table;
foreach($_POST as $key => $value){
if(strrpos($key, "field_", -strlen($key)) !== false){
$key = substr($key, 6);
$query .= sprintf("%s%s", ($first) ? " (" : ",", $key);
$first = false;
}
}
$query .= ") VALUES";
$first = true;
foreach($_POST as $key => $value){
if(strrpos($key, "field_", -strlen($key)) !== false){
$key = substr($key, 6);
$query .= sprintf("%s'%s'", ($first) ? " (" : ",", (isset($_POST['md5_' . $key])) ? md5($value) : $value);
$first = false;
}
}
$q = mysqli_query($conn, $query . ")");
if($q) echo 'Successfully inserted row into table!<br/><br/>'; else echo mysqli_error($conn) . '<br/><br/>';
}
}
// -----------------DELETE-----------------
if(isset($_POST['action']) && $_POST['action'] == "Delete"){
if(!isset($_POST['rows'])){
echo 'You didn\'t send any rows to delete.<br/><br/>';
}else{
$count = 0;
for($i = 0;$i < count($_POST['rows']);$i++){
if($_POST['rows'][$i] >= count($_SESSION['store'])) continue;
$query = "DELETE FROM " . $table . "";
$row = $_SESSION['store'][$_POST['rows'][$i]];
$first = true;
foreach($row as $key => $value){
$query .= sprintf(" %s %s = '%s'", ($first) ? "WHERE" : "AND", $key, $value);
$first = false;
}
$q = mysqli_query($conn, $query . " LIMIT 1");
if(!$q) echo mysqli_error($conn) . '<br/>';
$count += mysqli_affected_rows($conn);
}
echo 'Successfully deleted ' . $count . ' row(s)!<br/><br/>';
}
}
// -----------------MODIFY-----------------
if(isset($_POST['action']) && $_POST['action'] == "Modify"){
if(!isset($_POST['rows'])){
echo 'You didn\'t send any rows to modify.<br/><br/>';
}else if(isset($_POST['modify'])){
$count = 0;
for($i = 0;$i < count($_POST['rows']);$i++){
if($_POST['rows'][$i] >= count($_SESSION['store'])) continue;
$first = true;
$query = "UPDATE " . $table . " SET";
foreach($_POST as $key => $value){
if(strrpos($key, "field_", -strlen($key)) !== false){
$key = explode("_", $key, 3);
if($key[1] == $i){
$query .= sprintf(((!$first) ? "," : "") . " %s = '%s'", $key[2], (isset($_POST['md5_' . $key[1] . '_' . $key[2]])) ? md5($value) : $value);
$first = false;
}
}
}
$row = $_SESSION['store'][$_POST['rows'][$i]];
$first = true;
foreach($row as $key => $value){
$query .= sprintf(" %s %s = '%s'", ($first) ? "WHERE" : "AND", $key, $value);
$first = false;
}
$q = mysqli_query($conn, $query . " LIMIT 1");
if(!$q) echo mysqli_error($conn) . '<br/>';
$count += mysqli_affected_rows($conn);
}
echo 'Successfully updated ' . $count . ' row(s)!<br/><br/>';
}else{
echo '<h3>Modify Row</h3>';
echo '<form method="post"><input type="hidden" name="action" value="' . $_POST['action'] . '" />';
for($i = 0;$i < count($_POST['rows']);$i++) if($_POST['rows'][$i] < count($_SESSION['store'])) echo '<input type="hidden" name="rows[]" value="' . $_POST['rows'][$i] . '" />';
echo '<table border="1" cellpadding="7"><tr><th>Field</th><th>Value</th><th>MD5</th></tr>';
for($i = 0;$i < count($_POST['rows']);$i++){
if($_POST['rows'][$i] >= count($_SESSION['store'])) continue;
if($i != 0) echo '<tr><td colspan="3"><hr/></td></tr>';
$row = $_SESSION['store'][$_POST['rows'][$i]];
foreach($row as $key => $value){
echo '<tr><td>' . $key . ':</td><td><input type="text" name="field_' . $i . '_' . $key . '" value="' . $value . '" /></td><td><input type="checkbox" name="md5_' . $i . '_' . $key . '" /></td></tr>';
}
}
echo '<tr><td><input type="submit" name="modify" value="Submit" /></td><td colspan="2"><a href="?table=' . $_GET['table'] . '">Back</a></td></tr></table></form>';
exit;
}
}
// -----------------SEARCH-----------------
echo '<br><form method="post">Search: <input type="text" name="filter" value="' . ((isset($_POST['filter'])) ? $_POST['filter'] : '') . '"/><br/>Filter by: <br/>';
for($i = 0;$i < count($fields);$i++) echo '<input type="checkbox" name="' . $fields[$i] . '"' . ((isset($_POST['filter']) && isset($_POST[$fields[$i]])) ? ' checked' : '') . '/>' . $fields[$i] . ' ';
echo '</form><form method="post"><table border="1" cellpadding="7"><tr>';
for($i = 0;$i < count($fields);$i++) echo '<th>' . $fields[$i] . '</th>';
echo '<th>-</th></tr>';
$sql = "SELECT * FROM " . $table;
if(isset($_POST['filter'])){
$filter = mysqli_real_escape_string($conn, $_POST['filter']);
foreach($fields as $key => $value) if(!isset($_POST[$fields[$key]])) unset($fields[$key]);
if(count($fields) > 0){
$first = true;
foreach($fields as $key => $value){
$sql .= " " . (($first) ? "WHERE" : "OR") . " " . $value . " LIKE '%" . $filter . "%'";
$first = false;
}
}
}
// -----------------Bottoms (Above table)-----------------
echo '<input type="submit" name="action" value="Modify" /> <input onclick="return confirm(\'Are you sure you want to delete these rows?\')" type="submit" name="action" value="Delete" /> <input type="submit" name="action" value="Insert" /><br><br></form>';
$_SESSION['store'] = array();
$q = mysqli_query($conn, $sql) or die(mysqli_error($conn));
while($r = mysqli_fetch_assoc($q)){
echo '<tr>';
foreach($r as $key => $value) echo '<td>' . $value. '</td>';
echo '<td><input type="checkbox" name="rows[]" value="' . count($_SESSION['store']) . '" /></td></tr>';
$_SESSION['store'][count($_SESSION['store'])] = $r;
}
// -----------------Bottoms (Below table)-----------------
echo '</table>';
//echo '<br><input type="submit" name="action" value="Modify" /> <input onclick="return confirm(\'Are you sure you want to delete these rows?\')" type="submit" name="action" value="Delete" /> <input type="submit" name="action" value="Insert" /></form>';
?>
<br>
// -----------------Pagination-----------------
<br>
<?php
$start=0;
$limit=50;
if(isset($_GET['page']))
{
$page=$_GET['page'];
$start=($page-1)*$limit;
}
else{
$page=1;
}
//Fetch from database first 10 items which is its limit. For that when page open you can see first 10 items.
$query=mysqli_query($conn,"select * from $table LIMIT $start, $limit");
?>
<?php
//print 10 items
while($result=mysqli_fetch_array($query))
{
//echo "<li>".$result['username']."</li>";
}
?>
<?php
//fetch all the data from database.
$rows=mysqli_num_rows(mysqli_query($conn,"select * from $table"));
//calculate total page number for the given table in the database
$total=ceil($rows/$limit);
if($page>1)
{
//Go to previous page to show previous 10 items. If its in page 1 then it is inactive
echo '<a href="?table=' . $_GET['table'] . '?page='.($page-1).'" class="button">PREVIOUS</a>';
}
if($page!=$total)
{
////Go to previous page to show next 10 items.
echo '<a href="?table=' . $_GET['table'] . '?page='.($page+1).'" class="button">NEXT</a>';
}
?>
<?php
//show all the page link with page number. When click on these numbers go to particular page.
for($i=1;$i<=$total;$i++)
{
if($i==$page) { echo "<li class='current'>".$i."</li>"; }
else { echo '<li><a href="?table=' . $_GET['table'] . '?page='.$i.'">'.$i.'</a></li>'; }
}
?>
Bitte lesen Sie: [Wie ein minimales, vollständiges und überprüfbares Beispiel erstellt wird] (http://stackoverflow.com/help/mcve) –