我正在使用php中的分页搜索功能.Below是我的代码,但每当我点击下一个链接时,搜索查询都没有采用通过POST传递的变量。 你能帮帮我..
searchstr=$_POST['q'];
session_start();
$_SESSION['searchchar']=$searchstr;
$rec_limit=3;
$connection=connection();
$searchstr=$_REQUEST['q'];
$sql="Select count(*) from FIMTRN_Memorial where FirstName like '%".$_SESSION['searchchar']."%'";
echo$sql;
$result1=mysql_query($sql);
if(! $result1)
{
die('Could not get data: ' . mysql_error());
}
$row = mysql_fetch_array($result1,MYSQL_NUM );
$rec_count = $row[0];
echo$rec_count;
if( isset($_GET{'page'} ) )
{
$page = $_GET{'page'} + 1;
$offset = $rec_limit * $page ;
}
else
{
$page = 0;
$offset = 0;
}
$left_rec = $rec_count - ($page * $rec_limit);
$sql="Select * from FIMTRN_Memorial where FirstName like '%".$_SESSION['searchchar']."%' limit $offset,$rec_limit";
echo$sql;
$result=mysql_query($sql);
$rec_num=mysql_num_rows($result);
if($rec_num>0)
{
while($row = mysql_fetch_array($result,MYSQL_ASSOC))
{
$fname=$row['FirstName'];
$image=$row['ProfileImagePath'];
$about=$row['About'];
$url=$row['CustomURL'];
$DOB=$row['DOB'];
$DOD=$row['DOD'];
?>
<div class="search">
<p class="content"><img src="<?php echo $image;?>" style="border:1px solid red;width:100px;height:100px;" /></p>
<div class="content"><p>
<?php
echo "<a href=\"$url;\" target=\"_blank\">$fname</a>";
?>
<p>(<?php echo date("Y",strtotime($DOB));?>-<?php echo date("Y", strtotime($DOD));?>)</p>
</p><p><?php echo$about?></p>
</div>
</div>
<?php
}
if( $page > 0 & $left_rec > $rec_limit)
{
$last = $page - 2;
echo "<a href=\"?page=$last\">Previous Records</a> |";
echo "<a href=\"?page=$page\">Next Records</a>";
}
else if( $page == 0 & $rec_count>$rec_limit )
{
echo "<a href=\"?page=$page\">Next Records</a>";
}
else if( $left_rec < $rec_limit & $rec_count>$rec_limit )
{
$last = $page - 2;
echo "<a href=\"?page=$last\">Previous Records</a>";
}
}
else
{
echo"No memorial found.Please try with other name.";
}
enter code here
?>
答案 0 :(得分:2)
您的代码中存在一些问题。
首先:
您错误地使用了$_GET
变量。您有$_GET{'page'}
,但您应该使用与$_POST
变量相同的方式,例如:$_GET['page']
第二
您正在解释POST的想法并错误地点击链接。您需要使用下一个和上一个按钮进行的操作是一个隐藏的表单,其中包含您需要的所有其他变量。例如,最简单的方法是不涉及更改其他代码:
if( $page > 0 & $left_rec > $rec_limit)
{
$last = $page - 2;
// Previous button form
echo "<form action='?page=$last' method='POST'>";
echo "<input type='hidden' name='q' value='" . $_POST['q'] . "' />"; // This will be a field that saves information but won't appear on the page (though a user could see it if they view source)
echo "<input type='submit' value='Previous Records' />";
echo "</form>";
echo " | "; // The delimiting character you were using, you'll need to style the input type='submit's to look more like a link if that's what you are going for
// Next button form
echo "<form action='?page=$page' method='POST'>";
echo "<input type='hidden' name='q' value='" . $_POST['q'] . "' />"; // This will be a field that saves information but won't appear on the page (though a user could see it if they view source)
echo "<input type='submit' value='Next Records' />";
echo "</form>";
}
此方法会将您的变量保留在请求中。使用链接实质上会重置$ _POST变量。还有很多其他可能的解决方案,但这需要最少量的工作来修改您的示例。
答案 1 :(得分:0)
如果您要创建排序和搜索功能,我建议您使用$_SESSION
变量而非$_POST
或$_GET
,这将有助于您更好地管理网格/数据。< / p>