限制分页页码

时间：2011-12-02 19:52:12

标签： php mysql sql pagination paging 

$objConnect = mysql_connect("localhost","root","") or die(mysql_error());
$objDB = mysql_select_db("Test");

$strSQL = "SELECT * FROM UserAddedRecord WHERE (Name LIKE '%".$getname."%' and State LIKE '%".$getstate."%' and Cell LIKE '%".$getcell."%' and Custgroup LIKE '%".$getgroup."%') AND user_id=$id";

$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
$Num_Rows = mysql_num_rows($objQuery);

$Per_Page = 5;   

if (!isset($_GET['Page'])) {
    $Page = 1;
} else {
    $Page = $_GET['Page'];
}

$Prev_Page = $Page - 1;
$Next_Page = $Page + 1;

$Page_Start = (($Per_Page * $Page) - $Per_Page);
if ($Num_Rows <= $Per_Page) {
    $Num_Pages = 1;
} elseif (($Num_Rows % $Per_Page) == 0) {
    $Num_Pages = ($Num_Rows / $Per_Page) ;
} else {
    $Num_Pages = ($Num_Rows / $Per_Page) + 1;
    $Num_Pages = (int) $Num_Pages;
}


$strSQL .=" order  by addedrec_ID DESC LIMIT $Page_Start , $Per_Page";
$objQuery  = mysql_query($strSQL) or trigger_error(mysql_error());;

if ($Prev_Page) {
    echo " <a href ='$_SERVER[SCRIPT_NAME]?Page=$Prev_Page&txtName=$getname&txtState=$getstate&txtCell=$getcell&txtGroup=$getgroup'><< Back</a> ";
}

for ($i=1; $i <= $Num_Pages; $i++) {
    if ($i != $Page) {
        echo " <a href ='$_SERVER[SCRIPT_NAME]?Page=$i&txtName=$getname&txtState=$getstate&txtCell=$getcell&txtGroup=$getgroup'>$i</a> ";
    } else {
        echo "<b> $i </b>"; 
    }
}

if ($Page!=$Num_Pages) {
    echo " <a href ='$_SERVER[SCRIPT_NAME]?Page=$Next_Page&txtName=$getname&txtState=$getstate&txtCell=$getcell&txtGroup=$getgroup'>Next>></a> ";        
}

mysql_close($objConnect);

这是我用来为数据搜索创建分页页面的代码。但我只是注意到我有太多的记录然后它会有太多的页码。我试图限制显示的页码，并寻找许多例子..有很多方法可以做到这一点，但我仍然不知道如何限制它为我的方法......

7 个答案:

答案 0 :(得分：30)

好的，如果你的意思是显示像

Prev 1 2 3 4 5 6 .. 40 41 Next 
Prev 1 2 .. 6 7 8 9 10 .. 40 41 Next

我们需要做的第一件事是创建一个可以处理输出分页所需内容的函数。这是我使用的功能，效果很好。

function get_paging_info($tot_rows,$pp,$curr_page)
{
    $pages = ceil($tot_rows / $pp); // calc pages

    $data = array(); // start out array
    $data['si']        = ($curr_page * $pp) - $pp; // what row to start at
    $data['pages']     = $pages;                   // add the pages
    $data['curr_page'] = $curr_page;               // Whats the current page

    return $data; //return the paging data

}

现在这个功能非常扎实，对我来说效果很好。

所以你传递了这个功能

  • $ tot_rows =计算查询行数
  • $ pp =每页项目
  • $ curr_page =当前页码

好的，既然您拥有所需的数据，就需要显示它。

继承我使用的东西，请在你想到之前阅读它，'啊，它太长了'。它实际上非常简单。

下面是它将返回的快照

enter image description here 

    <!-- Create the query -->
    <?php $count = mysql_fetch_assoc( mysql_query ( "SELECT COUNT( rows ) as count FROM table" ) ) ;

    <?php $count = $count[0]['count']; ?>

<!-- Call our function from above -->
<?php $paging_info = get_paging_info($count,5,34); ?>


<p>
    <!-- If the current page is more than 1, show the First and Previous links -->
    <?php if($paging_info['curr_page'] > 1) : ?>
        <a href='' title='Page 1'>First</a>
        <a href='' title='Page <?php echo ($paging_info['curr_page'] - 1); ?>'>Prev</a>
    <?php endif; ?>



    <?php
        //setup starting point

        //$max is equal to number of links shown
        $max = 7;
        if($paging_info['curr_page'] < $max)
            $sp = 1;
        elseif($paging_info['curr_page'] >= ($paging_info['pages'] - floor($max / 2)) )
            $sp = $paging_info['pages'] - $max + 1;
        elseif($paging_info['curr_page'] >= $max)
            $sp = $paging_info['curr_page']  - floor($max/2);
    ?>

    <!-- If the current page >= $max then show link to 1st page -->
    <?php if($paging_info['curr_page'] >= $max) : ?>

        <a href='' title='Page 1'>1</a>
        ..

    <?php endif; ?>

    <!-- Loop though max number of pages shown and show links either side equal to $max / 2 -->
    <?php for($i = $sp; $i <= ($sp + $max -1);$i++) : ?>

        <?php
            if($i > $paging_info['pages'])
                continue;
        ?>

        <?php if($paging_info['curr_page'] == $i) : ?>

            <span class='bold'><?php echo $i; ?></span>

        <?php else : ?>

            <a href='' title='Page <?php echo $i; ?>'><?php echo $i; ?></a>

        <?php endif; ?>

    <?php endfor; ?>


    <!-- If the current page is less than say the last page minus $max pages divided by 2-->
    <?php if($paging_info['curr_page'] < ($paging_info['pages'] - floor($max / 2))) : ?>

        ..
        <a href='' title='Page <?php echo $paging_info['pages']; ?>'><?php echo $paging_info['pages']; ?></a>

    <?php endif; ?>

    <!-- Show last two pages if we're not near them -->
    <?php if($paging_info['curr_page'] < $paging_info['pages']) : ?>

        <a href='<?php echo str_replace('/page'.$paging_info['curr_page'], '', $paging_info['curr_url']) . '/page'.($paging_info['curr_page'] + 1); ?>' title='Page <?php echo ($paging_info['curr_page'] + 1); ?>'>Next</a>

        <a href='<?php echo str_replace('/page'.$paging_info['curr_page'], '', $paging_info['curr_url']) . '/page'.$paging_info['pages']; ?>' title='Page <?php echo $paging_info['pages']; ?>'>Last</a>

    <?php endif; ?>
</p>

答案 1 :(得分：3)

$ count_pages = ceil（$ total / $ items_per_page）;

答案 2 :(得分：2)

您需要在sql语句中使用LIMIT子句。例如：

SELECT <column> 
  FROM <table>
    LIMIT 0, 5

参考：SELECT Syntax

答案 3 :(得分：2)

我为其他人提供了一个非常类似的问题：How to limit pages shown in pagination script

另外，我注意到你的脚本还有一些其他的异常（除了我修复的不可读的格式）。您应该将所有$_SERVER[SCRIPT_NAME]更改为$_SERVER['SCRIPT_NAME']。在您的脚本中，例如：

echo " <a href ='$_SERVER[SCRIPT_NAME]?Page=...";

会变成：

echo " <a href ='{$_SERVER['SCRIPT_NAME']}?Page=...";

答案 4 :(得分：2)

我的代码总是显示至少9页，如果总页数> 9，无论你在第1,2,3页

<ul class="pagination pagination-sm" style="align:center">
    <li><a href="./?page=1"><</span></a></li>
    <?php
    if ($current_page <4){
        if ($total_pages<9)
        {
            for($i = 1; $i <=  $total_pages; $i++)
            {

                if ($i == $current_page)
                {
                    echo '<li class="active"><a href="#">'; echo $i.'</a></li>'."\n";
                } else {
                    echo ' <li><a href="./?page='.$i.'">'; echo $i.'</a></li>'."\n";
                }
            }
        }
        else
        {
            for($i = 1; $i <=  9; $i++)
            {

                if ($i == $current_page)
                {
                    echo '<li class="active"><a href="#">'; echo $i.'</a></li>'."\n";
                } else {
                    echo ' <li><a href="./?trang='.$i.'">'; echo $i.'</a></li>'."\n";
                }
            }
        }
    }
    elseif ($current_page >$total_pages-4)
    {
        if ($total_pages<9)
        {
            for($i = 1; $i <=  $total_pages; $i++){

                if ($i == $current_page){
                    echo '<li class="active"><a href="#">'; echo $i.'</a></li>'."\n";
                } else {
                    echo ' <li><a href="./?page='.$i.'">'; echo $i.'</a></li>'."\n";
                }
            }
        }else{
            for($i = $total_pages-8; $i <=  $total_pages; $i++){

                if ($i == $current_page){
                    echo '<li class="active"><a href="#">'; echo $i.'</a></li>'."\n";
                } else {
                    echo ' <li><a href="./?page='.$i.'">'; echo $i.'</a></li>'."\n";
                }
            }
        }

    }else{
        for($i = max(1, $current_page - 4); $i <= min($current_page + 4, $total_pages); $i++){

            if ($i == $current_page){
                echo '<li class="active"><a href="#">'; echo $i.'</a></li>'."\n";
            } else {
                echo ' <li><a href="./?trang='.$i.'">'; echo $i.'</a></li>'."\n";
            }
        }
    }
    ?>
    <li>
        <a href="./?trang=<?php echo $total_pages ?>">></a>
    </li>
</ul>

答案 5 :(得分：2)

简单，这是代码：

<?php       
    //put this code on the begining of the page
    $page=$_GET['page']; //Getting page number from url | example: www.mydomain.com/index.php?page=3
    if(!is_numeric($page)) $page=1; //If there is no page number specified we set number 1
$queryCount = "SELECT * FROM table "; //select from db
$query = $DB->query( $queryCount);
    $num = mysql_num_rows ($query); //count num rows
    $per_page=5; //default 5 results per page
$start=$per_page*($page-1); //start for select on next page (page2, 3, 4,5)
$end=min($num,$page*$per_page); //end


//here is select for your results. Be careful for LIMIT in the select!
$query = "SELECT * FROM page LIMIT $start, $per_page ";


//page bottom, where you want to put your numbers
$pages=ceil($num/$per_page);
  for($s=1; $s<=$pages; $s++)
  {
    if($s==$page)
      $numPage  .= "[$s] ";
    else
      $numPage  .= "<a href='index.php?page=$s'>$s</a> ";
  }

echo $numPage;

＆GT;

我没有测试它，但我认为它必须工作:-)

问候，伊万

答案 6 :(得分：1)

此代码的目的仅在于显示分页中明确（确定）的页数

从网址获取当前页码并定义$curr_pg_numb

从mysql获取总页数并定义$total_pages

这是分页代码

$counter=0;
$init_num_to_left = 3;//initial number of pages to show to left from current page
$init_num_to_right = 4;

if( $curr_pg_numb - $init_num_to_left < 1 ){
$init_num_to_right = $init_num_to_right + ( 1 - ($curr_pg_numb - $init_num_to_left) );
$init_num_to_left = $curr_pg_numb - 1;
}
else if( $curr_pg_numb + $init_num_to_right > $total_pages ){
$init_num_to_left = $init_num_to_left + ( ($curr_pg_numb + $init_num_to_right) - $total_pages );
$init_num_to_right = ($curr_pg_numb + $init_num_to_right) - $total_pages;
}

while($counter <= $total_pages ) {
  if ( $counter > 0 ){
    if ($curr_pg_numb==$counter){
    echo '<strong> '. ( htmlspecialchars($curr_pg_numb , ENT_QUOTES, "UTF-8") + 0 ). '</strong> ';
    }
    else {
    if ( $counter >= ($curr_pg_numb - $init_num_to_left ) and $counter <= ($curr_pg_numb + $init_num_to_right ) ) {
    echo '<a href="?cpn='. htmlspecialchars(($counter), ENT_QUOTES, "UTF-8"). '" style="margin:5px;">'. htmlspecialchars(($counter), ENT_QUOTES, "UTF-8"). '</a>';
    }
    }//else {
  }//if ( $counter > 0 ){
$counter++;
}//while($counter <= $total_pages ) {
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