如何在几个特定大小的窗口中显示多个图像，在php中用选项卡分隔
在我的数据库查询中，它返回一组图像名称。我想在一个小窗口中显示它们（比如3x3），如果有更多图像（>9），它将通过选项卡或特定符号填充到下一个窗口。人们可以单击该符号打开下一个窗口。我还想识别用户选择的图像 在这幅图中，显示的想法类似于表情符号窗口 你知道我可以用php制作吗 以下是我正在尝试的内容，请随时更正我的代码：如何在几个特定大小的窗口中显示多个图像，在php中用选项卡分隔,php,jquery,emoticons,Php,Jquery,Emoticons,在我的数据库查询中，它返回一组图像名称。我想在一个小窗口中显示它们（比如3x3），如果有更多图像（>9），它将通过选项卡或特定符号填充到下一个窗口。人们可以单击该符号打开下一个窗口。我还想识别用户选择的图像 在这幅图中，显示的想法类似于表情符号窗口 你知道我可以用php制作吗 以下是我正在尝试的内容，请随时更正我的代码： <?php include "dbConnector.php" ; ?> <table> <tr> <?php require_on
<?php include "dbConnector.php" ; ?>
<table>
<tr>
<?php
require_once ("paginator.php");
$pages = new Paginator; //ew paginator object to play with and initializes the default values behind the scenes
$connector= new DbConnector();
$queryObj = mysql_query("SELECT COUNT(*) FROM `mydb`.`images`");
$num_rows = mysql_num_rows($queryObj);
$pages->items_total = $num_rows; //assigns total number of records to our paginator's items_total property
$pages->mid_range = 7;//number of page links to display.
$pages->paginate();//ell the paginator to get to work and paginate
$x = mysql_query( "SELECT * FROM `mydb`.`images` ORDER BY `name` DESC $pages->limit");
$i = 0;
while($row = mysql_fetch_assoc($x))
{
$i++;
echo "<td><img src='imagefolder/".$row['name'].".png'/></td>";
if ($i % 3 == 0) {
echo '</tr><tr>';}
}
echo "Page $pages->current_page of $pages->num_pages";
echo $pages->display_pages();//displays our page numbers
?>
</tr>
<table>
这里对分页类进行了修改，以删除这些错误，并将DBConnector
替换为myDBEngine
类
您缺少的一个元素是每页限制和下一页>上一页链接
<?php
error_reporting(E_ALL);
class Paginator
{
var $items_per_page;
var $items_total;
var $current_page;
var $num_pages;
var $mid_range;
var $low;
var $high;
var $limit;
var $return;
var $default_ipp = 25;
function Paginator($_staticipp = '')
{
$this->current_page = (!isset($_GET['page']) || (isset($_GET['page']) && !is_numeric($_GET['page'])))? 1:$_GET['page'];
$this->mid_range = 7;
$_GET['ipp'] = (!empty($_staticipp) && is_numeric($_staticipp))? $_staticipp: $_GET['ipp'];
$this->items_per_page = (!empty($_GET['ipp']) && is_numeric($_GET['ipp'])) ? $_GET['ipp']:$this->default_ipp;
}
function paginate()
{
if(isset($_GET['ipp']) && $_GET['ipp'] == 'All') {
$this->num_pages = ceil($this->items_total/$this->default_ipp);
$this->items_per_page = $this->default_ipp;
}
else {
if(!is_numeric($this->items_per_page) || $this->items_per_page <= 0)
$this->items_per_page = $this->default_ipp;
$this->num_pages = ceil($this->items_total / $this->items_per_page);
}
$this->current_page = (isset($_GET['page']) && is_numeric($_GET['page']))? (int) $_GET['page']:0; // must be numeric > 0
if($this->current_page < 1 Or !is_numeric($this->current_page)) $this->current_page = 1;
if($this->current_page > $this->num_pages) $this->current_page = $this->num_pages;
$prev_page = $this->current_page-1;
$next_page = $this->current_page+1;
if($this->num_pages > 10) {
$this->return = ($this->current_page != 1 And $this->items_total >= 10) ? "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$prev_page&ipp=$this->items_per_page\">« Previous</a> ":"<span class=\"inactive\" href=\"#\">« Previous</span> ";
$this->start_range = $this->current_page - floor($this->mid_range/2);
$this->end_range = $this->current_page + floor($this->mid_range/2);
if($this->start_range <= 0) {
$this->end_range += abs($this->start_range)+1;
$this->start_range = 1;
}
if($this->end_range > $this->num_pages) {
$this->start_range -= $this->end_range-$this->num_pages;
$this->end_range = $this->num_pages;
}
$this->range = range($this->start_range,$this->end_range);
for($i=1;$i<=$this->num_pages;$i++) {
if($this->range[0] > 2 And $i == $this->range[0]) $this->return .= " ... ";
// loop through all pages. if first, last, or in range, display
if($i == 1 Or $i == $this->num_pages Or in_array($i,$this->range)) {
$this->return .= ($i == $this->current_page And $_GET['page'] != 'All') ? "<a title=\"Go to page $i of $this->num_pages\" class=\"current\" href=\"#\">$i</a> ":"<a class=\"paginate\" title=\"Go to page $i of $this->num_pages\" href=\"$_SERVER[PHP_SELF]?page=$i&ipp=$this->items_per_page\">$i</a> ";
}
if($this->range[$this->mid_range-1] < $this->num_pages-1 And $i == $this->range[$this->mid_range-1]) $this->return .= " ... ";
}
$this->return .= (($this->current_page != $this->num_pages And $this->items_total >= 10) And ($_GET['page'] != 'All')) ? "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$next_page&ipp=$this->items_per_page\">Next »</a>\n":"<span class=\"inactive\" href=\"#\">» Next</span>\n";
$this->return .= ($_GET['page'] == 'All') ? "<a class=\"current\" style=\"margin-left:10px\" href=\"#\">All</a> \n":"<a class=\"paginate\" style=\"margin-left:10px\" href=\"$_SERVER[PHP_SELF]?page=1&ipp=All\">All</a> \n";
}
else {
for($i=1;$i<=$this->num_pages;$i++) {
$this->return .= ($i == $this->current_page) ? "<a class=\"current\" href=\"#\">$i</a> ":"<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$i&ipp=$this->items_per_page\">$i</a> ";
}
$this->return .= "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=1&ipp=All\">All</a> \n";
}
$this->low = ($this->current_page-1) * $this->items_per_page;
$this->high = (isset($_GET['ipp']) && $_GET['ipp'] == 'All') ? $this->items_total:($this->current_page * $this->items_per_page)-1;
$this->limit = (isset($_GET['ipp']) && $_GET['ipp'] == 'All') ? "":" LIMIT ".$this->low.",".$this->items_per_page;
}
function display_items_per_page()
{
$items = '';
$ipp_array = array("",9,'All');
foreach($ipp_array as $ipp_opt) $items .= ($ipp_opt == $this->items_per_page) ? "<option selected value=\"$ipp_opt\">$ipp_opt</option>\n":"<option value=\"$ipp_opt\">$ipp_opt</option>\n";
return "<span class=\"paginate\">Items per page:</span><select class=\"paginate\" onchange=\"window.location='$_SERVER[PHP_SELF]?page=1&ipp='+this[this.selectedIndex].value;return false\">$items</select>\n";
}
function display_jump_menu()
{
for($i=1;$i<=$this->num_pages;$i++) {
$option .= ($i==$this->current_page) ? "<option value=\"$i\" selected>$i</option>\n":"<option value=\"$i\">$i</option>\n";
}
return "<span class=\"paginate\">Page:</span><select class=\"paginate\" onchange=\"window.location='$_SERVER[PHP_SELF]?page='+this[this.selectedIndex].value+'&ipp=$this->items_per_page';return false\">$option</select>\n";
}
function display_pages()
{
return $this->return;
}
}
class DBEngine
{
protected $con;
// Create a default database element
public function __construct($host = '',$db = '',$user = '',$pass = '')
{
try {
$this->con = new PDO("mysql:host=$host;dbname=$db",$user,$pass, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_WARNING));
}
catch (Exception $e) {
return 0;
}
}
// Simple fetch and return method
public function Fetch($_sql)
{
$query = $this->con->prepare($_sql);
$query->execute();
if($query->rowCount() > 0) {
while($array = $query->fetch(PDO::FETCH_ASSOC)) {
$rows[] = $array;
}
}
return (isset($rows) && $rows !== 0 && !empty($rows))? $rows: 0;
}
// Simple write to db method
public function Write($_sql)
{
$query = $this->con->prepare($_sql);
$query->execute();
}
} ?>
<table>
<tr>
<?php
$con = new DBEngine("host","database","user","pass");
$pages = new Paginator(9);
$queryObj = $con->Fetch("SELECT COUNT(*) FROM mydb.images");
$num_rows = $queryObj[0]['COUNT(*)'];
$pages->items_total = $num_rows; //assigns total number of records to our paginator's items_total property
$pages->mid_range = 7;//number of page links to display.
$pages->paginate();//tell the paginator to get to work and paginate ?>
<tr>
<td colspan="3"><?php echo $pages->display_items_per_page(); ?></td>
</tr>
<tr>
<?php
$_sql = "SELECT * FROM mydb.images ORDER BY `name` DESC ".$pages->limit;
$x = $con->Fetch($_sql);
$i = 1;
foreach($x as $val => $row) { ?>
<td style="border:1px solid;"><img src="<?php echo $row['name']; ?>" style="max-width: 40px;" /></td>
<?php
if ($i % 3 == 0) { ?>
</tr>
<tr><?php
}
$i++;
} ?>
Page <?php echo $pages->current_page; ?> of <?php echo $pages->num_pages; ?>
<?php echo $pages->display_pages();//displays our page numbers ?>
</tr>
<table>
听起来分页是您尝试做的最难的部分：是的，这也是我需要知道的一个元素！谢谢我也不知道如何在一个固定大小的窗口中填充图像，并识别所选的窗口，然后隐藏窗口并显示所选的图像。而且每次查询的图像数量将不同，因此，页面数量也不同。有没有可能让paginate方法自动计算每个窗口的固定项目数？你能给我一段示例代码，让我接受它作为解决方案？谢谢当然，把你目前所拥有的东西拿出来，我可以尽我所能帮助你。我为您提供了分页链接，因此我假设您只需要在页面上设置固定宽度的帮助？？我在使用DBEngine而不是dbConnector时遇到了一些困难。当我在里面替换我的db名称时，我仍然会遇到一些错误，所以我尝试将我的dbconnector与您的代码一起使用OK，现在我可以让它运行，而不必注意上面提到的ipp和页面。但它在一个页面上显示所有图像，有3列，但有许多行。实际上我想要一个3x3的窗口。接下来的9张图片将出现在下一个窗口中，以此类推……您是否限制每页仅显示9张图片？我在一个页面中获得了所有12幅图像，在页面链接按钮中显示“第0页，共0页”。另一件事是，当我将我的信息添加到您的代码中时，我还收到警告“表'mydb.mydb.images'在C:\xampp\htdocs\…”中不存在，不确定原因。这就是我的表：是的，它工作！！是否可以设置每页的默认项目数（不允许用户选择）。我不知道页面链接显示的是这样的“第1页，共12页”（我总共有12张图片，看起来它也显示在那里）。这是否可以使其显示（使用“上一步”和“下一步”按钮）而不是上面的按钮？你有一段很好的代码！
<?php
class Paginator{
var $items_per_page;
var $items_total;
var $current_page;
var $num_pages;
var $mid_range;
var $low;
var $high;
var $limit;
var $return;
var $default_ipp = 25;
function Paginator()
{
$this->current_page = 1;
$this->mid_range = 7;
$this->items_per_page = (!empty($_GET['ipp'])) ? $_GET['ipp']:$this->default_ipp;
}
function paginate()
{
if($_GET['ipp'] == 'All')
{
$this->num_pages = ceil($this->items_total/$this->default_ipp);
$this->items_per_page = $this->default_ipp;
}
else
{
if(!is_numeric($this->items_per_page) OR $this->items_per_page <= 0) $this->items_per_page = $this->default_ipp;
$this->num_pages = ceil($this->items_total/$this->items_per_page);
}
$this->current_page = (int) $_GET['page']; // must be numeric > 0
if($this->current_page < 1 Or !is_numeric($this->current_page)) $this->current_page = 1;
if($this->current_page > $this->num_pages) $this->current_page = $this->num_pages;
$prev_page = $this->current_page-1;
$next_page = $this->current_page+1;
if($this->num_pages > 10)
{
$this->return = ($this->current_page != 1 And $this->items_total >= 10) ? "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$prev_page&ipp=$this->items_per_page\">« Previous</a> ":"<span class=\"inactive\" href=\"#\">« Previous</span> ";
$this->start_range = $this->current_page - floor($this->mid_range/2);
$this->end_range = $this->current_page + floor($this->mid_range/2);
if($this->start_range <= 0)
{
$this->end_range += abs($this->start_range)+1;
$this->start_range = 1;
}
if($this->end_range > $this->num_pages)
{
$this->start_range -= $this->end_range-$this->num_pages;
$this->end_range = $this->num_pages;
}
$this->range = range($this->start_range,$this->end_range);
for($i=1;$i<=$this->num_pages;$i++)
{
if($this->range[0] > 2 And $i == $this->range[0]) $this->return .= " ... ";
// loop through all pages. if first, last, or in range, display
if($i==1 Or $i==$this->num_pages Or in_array($i,$this->range))
{
$this->return .= ($i == $this->current_page And $_GET['page'] != 'All') ? "<a title=\"Go to page $i of $this->num_pages\" class=\"current\" href=\"#\">$i</a> ":"<a class=\"paginate\" title=\"Go to page $i of $this->num_pages\" href=\"$_SERVER[PHP_SELF]?page=$i&ipp=$this->items_per_page\">$i</a> ";
}
if($this->range[$this->mid_range-1] < $this->num_pages-1 And $i == $this->range[$this->mid_range-1]) $this->return .= " ... ";
}
$this->return .= (($this->current_page != $this->num_pages And $this->items_total >= 10) And ($_GET['page'] != 'All')) ? "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$next_page&ipp=$this->items_per_page\">Next »</a>\n":"<span class=\"inactive\" href=\"#\">» Next</span>\n";
$this->return .= ($_GET['page'] == 'All') ? "<a class=\"current\" style=\"margin-left:10px\" href=\"#\">All</a> \n":"<a class=\"paginate\" style=\"margin-left:10px\" href=\"$_SERVER[PHP_SELF]?page=1&ipp=All\">All</a> \n";
}
else
{
for($i=1;$i<=$this->num_pages;$i++)
{
$this->return .= ($i == $this->current_page) ? "<a class=\"current\" href=\"#\">$i</a> ":"<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$i&ipp=$this->items_per_page\">$i</a> ";
}
$this->return .= "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=1&ipp=All\">All</a> \n";
}
$this->low = ($this->current_page-1) * $this->items_per_page;
$this->high = ($_GET['ipp'] == 'All') ? $this->items_total:($this->current_page * $this->items_per_page)-1;
$this->limit = ($_GET['ipp'] == 'All') ? "":" LIMIT $this->low,$this->items_per_page";
}
function display_items_per_page()
{
$items = '';
$ipp_array = array(10,25,50,100,'All');
foreach($ipp_array as $ipp_opt) $items .= ($ipp_opt == $this->items_per_page) ? "<option selected value=\"$ipp_opt\">$ipp_opt</option>\n":"<option value=\"$ipp_opt\">$ipp_opt</option>\n";
return "<span class=\"paginate\">Items per page:</span><select class=\"paginate\" onchange=\"window.location='$_SERVER[PHP_SELF]?page=1&ipp='+this[this.selectedIndex].value;return false\">$items</select>\n";
}
function display_jump_menu()
{
for($i=1;$i<=$this->num_pages;$i++)
{
$option .= ($i==$this->current_page) ? "<option value=\"$i\" selected>$i</option>\n":"<option value=\"$i\">$i</option>\n";
}
return "<span class=\"paginate\">Page:</span><select class=\"paginate\" onchange=\"window.location='$_SERVER[PHP_SELF]?page='+this[this.selectedIndex].value+'&ipp=$this->items_per_page';return false\">$option</select>\n";
}
function display_pages()
{
return $this->return;
}
}
?>
<?php
error_reporting(E_ALL);
class Paginator
{
var $items_per_page;
var $items_total;
var $current_page;
var $num_pages;
var $mid_range;
var $low;
var $high;
var $limit;
var $return;
var $default_ipp = 25;
function Paginator($_staticipp = '')
{
$this->current_page = (!isset($_GET['page']) || (isset($_GET['page']) && !is_numeric($_GET['page'])))? 1:$_GET['page'];
$this->mid_range = 7;
$_GET['ipp'] = (!empty($_staticipp) && is_numeric($_staticipp))? $_staticipp: $_GET['ipp'];
$this->items_per_page = (!empty($_GET['ipp']) && is_numeric($_GET['ipp'])) ? $_GET['ipp']:$this->default_ipp;
}
function paginate()
{
if(isset($_GET['ipp']) && $_GET['ipp'] == 'All') {
$this->num_pages = ceil($this->items_total/$this->default_ipp);
$this->items_per_page = $this->default_ipp;
}
else {
if(!is_numeric($this->items_per_page) || $this->items_per_page <= 0)
$this->items_per_page = $this->default_ipp;
$this->num_pages = ceil($this->items_total / $this->items_per_page);
}
$this->current_page = (isset($_GET['page']) && is_numeric($_GET['page']))? (int) $_GET['page']:0; // must be numeric > 0
if($this->current_page < 1 Or !is_numeric($this->current_page)) $this->current_page = 1;
if($this->current_page > $this->num_pages) $this->current_page = $this->num_pages;
$prev_page = $this->current_page-1;
$next_page = $this->current_page+1;
if($this->num_pages > 10) {
$this->return = ($this->current_page != 1 And $this->items_total >= 10) ? "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$prev_page&ipp=$this->items_per_page\">« Previous</a> ":"<span class=\"inactive\" href=\"#\">« Previous</span> ";
$this->start_range = $this->current_page - floor($this->mid_range/2);
$this->end_range = $this->current_page + floor($this->mid_range/2);
if($this->start_range <= 0) {
$this->end_range += abs($this->start_range)+1;
$this->start_range = 1;
}
if($this->end_range > $this->num_pages) {
$this->start_range -= $this->end_range-$this->num_pages;
$this->end_range = $this->num_pages;
}
$this->range = range($this->start_range,$this->end_range);
for($i=1;$i<=$this->num_pages;$i++) {
if($this->range[0] > 2 And $i == $this->range[0]) $this->return .= " ... ";
// loop through all pages. if first, last, or in range, display
if($i == 1 Or $i == $this->num_pages Or in_array($i,$this->range)) {
$this->return .= ($i == $this->current_page And $_GET['page'] != 'All') ? "<a title=\"Go to page $i of $this->num_pages\" class=\"current\" href=\"#\">$i</a> ":"<a class=\"paginate\" title=\"Go to page $i of $this->num_pages\" href=\"$_SERVER[PHP_SELF]?page=$i&ipp=$this->items_per_page\">$i</a> ";
}
if($this->range[$this->mid_range-1] < $this->num_pages-1 And $i == $this->range[$this->mid_range-1]) $this->return .= " ... ";
}
$this->return .= (($this->current_page != $this->num_pages And $this->items_total >= 10) And ($_GET['page'] != 'All')) ? "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$next_page&ipp=$this->items_per_page\">Next »</a>\n":"<span class=\"inactive\" href=\"#\">» Next</span>\n";
$this->return .= ($_GET['page'] == 'All') ? "<a class=\"current\" style=\"margin-left:10px\" href=\"#\">All</a> \n":"<a class=\"paginate\" style=\"margin-left:10px\" href=\"$_SERVER[PHP_SELF]?page=1&ipp=All\">All</a> \n";
}
else {
for($i=1;$i<=$this->num_pages;$i++) {
$this->return .= ($i == $this->current_page) ? "<a class=\"current\" href=\"#\">$i</a> ":"<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=$i&ipp=$this->items_per_page\">$i</a> ";
}
$this->return .= "<a class=\"paginate\" href=\"$_SERVER[PHP_SELF]?page=1&ipp=All\">All</a> \n";
}
$this->low = ($this->current_page-1) * $this->items_per_page;
$this->high = (isset($_GET['ipp']) && $_GET['ipp'] == 'All') ? $this->items_total:($this->current_page * $this->items_per_page)-1;
$this->limit = (isset($_GET['ipp']) && $_GET['ipp'] == 'All') ? "":" LIMIT ".$this->low.",".$this->items_per_page;
}
function display_items_per_page()
{
$items = '';
$ipp_array = array("",9,'All');
foreach($ipp_array as $ipp_opt) $items .= ($ipp_opt == $this->items_per_page) ? "<option selected value=\"$ipp_opt\">$ipp_opt</option>\n":"<option value=\"$ipp_opt\">$ipp_opt</option>\n";
return "<span class=\"paginate\">Items per page:</span><select class=\"paginate\" onchange=\"window.location='$_SERVER[PHP_SELF]?page=1&ipp='+this[this.selectedIndex].value;return false\">$items</select>\n";
}
function display_jump_menu()
{
for($i=1;$i<=$this->num_pages;$i++) {
$option .= ($i==$this->current_page) ? "<option value=\"$i\" selected>$i</option>\n":"<option value=\"$i\">$i</option>\n";
}
return "<span class=\"paginate\">Page:</span><select class=\"paginate\" onchange=\"window.location='$_SERVER[PHP_SELF]?page='+this[this.selectedIndex].value+'&ipp=$this->items_per_page';return false\">$option</select>\n";
}
function display_pages()
{
return $this->return;
}
}
class DBEngine
{
protected $con;
// Create a default database element
public function __construct($host = '',$db = '',$user = '',$pass = '')
{
try {
$this->con = new PDO("mysql:host=$host;dbname=$db",$user,$pass, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_WARNING));
}
catch (Exception $e) {
return 0;
}
}
// Simple fetch and return method
public function Fetch($_sql)
{
$query = $this->con->prepare($_sql);
$query->execute();
if($query->rowCount() > 0) {
while($array = $query->fetch(PDO::FETCH_ASSOC)) {
$rows[] = $array;
}
}
return (isset($rows) && $rows !== 0 && !empty($rows))? $rows: 0;
}
// Simple write to db method
public function Write($_sql)
{
$query = $this->con->prepare($_sql);
$query->execute();
}
} ?>
<table>
<tr>
<?php
$con = new DBEngine("host","database","user","pass");
$pages = new Paginator(9);
$queryObj = $con->Fetch("SELECT COUNT(*) FROM mydb.images");
$num_rows = $queryObj[0]['COUNT(*)'];
$pages->items_total = $num_rows; //assigns total number of records to our paginator's items_total property
$pages->mid_range = 7;//number of page links to display.
$pages->paginate();//tell the paginator to get to work and paginate ?>
<tr>
<td colspan="3"><?php echo $pages->display_items_per_page(); ?></td>
</tr>
<tr>
<?php
$_sql = "SELECT * FROM mydb.images ORDER BY `name` DESC ".$pages->limit;
$x = $con->Fetch($_sql);
$i = 1;
foreach($x as $val => $row) { ?>
<td style="border:1px solid;"><img src="<?php echo $row['name']; ?>" style="max-width: 40px;" /></td>
<?php
if ($i % 3 == 0) { ?>
</tr>
<tr><?php
}
$i++;
} ?>
Page <?php echo $pages->current_page; ?> of <?php echo $pages->num_pages; ?>
<?php echo $pages->display_pages();//displays our page numbers ?>
</tr>
<table>