我有功能用分页显示搜索到的数据，但我想计算搜索时可用的结果总数，我有很多搜索条件，所以在这里我添加了count(*) as total搜索查询，但它不起作用可以任何一个指导我如何计算和显示这里是我的整个PHP代码与分页谢谢。
<?php
$tbl_name="contact"; //your table name
$adjacents = 7;
$query = "SELECT COUNT(*) as num FROM $tbl_name";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages['num'];
$targetpage = "filterdata.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 count(*) as total, DISTINCT contact.`id` , contact.`contactgroup` , contact.`media` ,contact.`media2` , contact.`email1` , contact.`nationality` , contact.`country3` , contact.`twon` , contact.`area` , contact.`gender` , contact.`married` , contact.`children` , contact.`driverslicense`
FROM $tbl_name ";
if ($language !="" && $language !="Empty" )
{
$language_exp = explode(',', $language);
$sql .= " INNER JOIN contactlanguage ON contact.id = contactlanguage.contactid
INNER JOIN language ON contactlanguage.languageid = language.id where isdeleted = 0 AND language.language in ('".implode("', '", $language_exp)."') ";
}
else
{
$sql .= " where isdeleted = 0";
}
if ($contactgroup !="" && $contactgroup !="Empty" )
{
$contactgroup_exp = explode(',', $contactgroup);
$sql .= " AND contactgroup in ('".implode("', '", $contactgroup_exp)."')";
}
if ($media !="" && $media !="Empty" && $media == "sms" )
{
$sql.=" and media = '".$media."'";
}
if ($media !="" && $media !="Empty" && $media == "email" )
{
$sql.=" and media2 = '".$media."'";
}
if ($media !="" && $media !="Empty" && $media == "sms,email" )
{
$sql.=" and media = 'sms' and media2 = 'email' ";
}
if ($nationality !="" && $nationality !="Empty" )
{
$nationality_exp = explode(',', $nationality);
$sql .= " AND nationality in ('".implode("', '", $nationality_exp)."')";
}
if ($country !="" && $country !="Empty" )
{
$country_exp = explode(',', $country);
$sql .= " AND country1 in ('".implode("', '", $country_exp)."')";
}
if ($twon !="" && $twon !="Empty" )
{
$city_exp = explode(',', $twon);
$sql .= " AND twon in ('".implode("', '", $city_exp)."')";
}
if ($area !="" && $area !="Empty" )
{
$area_exp = explode(',', $area);
$sql .= " AND area in ('".implode("', '", $area_exp)."')";
}
if ($gender !="" && $gender !="Empty" && $gender !="all" )
{
$sql.=" and gender = '".$gender."'";
}
if ($gender =="all" )
{
$sql.=" AND (`gender` = 'female' OR `gender` = 'male' OR `gender` = '') ";
}
if ($married !="" && $married !="Empty" && $married !="all" )
{
$sql.=" and married = '".$married."'";
}
if ($married =="all" )
{
$sql.=" AND (`married` = 'yes' OR `married` = 'no' OR `married` = '') ";
}
if ($children !="" && $children !="Empty" && $children !="all" )
{
$sql.=" and children = '".$children."'";
}
if ($children =="all" )
{
$sql.=" AND (`children` = 'yes' OR `children` = 'no' OR `children` = '') ";
}
if ($driver !="" && $driver !="Empty" && $driver !="all" )
{
$sql.=" and driverslicense = '".$driver."'";
}
if ($driver =="all" )
{
$sql.=" AND (`driverslicense` = 'yes' OR `driverslicense` = 'no' OR `driverslicense` = '') ";
}
if ($retype !="" && $retype !="Empty" && $retype !="all" )
{
$sql.=" and retype = '".$retype."'";
}
if ($retype =="all" )
{
$sql.=" AND (`retype` = 'apart' OR `retype` = 'house' OR `retype` = '') ";
}
if ($restatus !="" && $restatus !="Empty" && $restatus !="all" )
{
$sql.=" and restatus = '".$restatus."'";
}
if ($restatus =="all" )
{
$sql.=" AND (`restatus` = 'owner' OR `restatus` = 'renting' OR `restatus` = '') ";
}
if ($reproject !="" && $reproject !="Empty" )
{
$reproject_exp = explode(',', $reproject);
$sql .= " AND reproject1 in ('".implode("', '", $reproject_exp)."')";
}
if ($education !="" && $education !="Empty" )
{
$education_exp = explode(',', $education);
$sql .= " AND education in ('".implode("', '", $education_exp)."')";
}
if ($jobrole !="" && $jobrole !="Empty" )
{
$jobrole_exp = explode(',', $jobrole);
$sql .= " AND jobrole in ('".implode("', '", $jobrole_exp)."')";
}
if ($jobsector !="" && $jobsector !="Empty" )
{
$jobsector_exp = explode(',', $jobsector);
$sql .= " AND jobsector in ('".implode("', '", $jobsector_exp)."')";
}
if ($dataperiod !="" && $dataperiod !="EmptyEmptyEmpty" && $arraydataperiodcount !="EmptyEmpty" && $arraydataperiodcount !="" && $dataperiod !="EmptyEmpty")
{
$sql.=" and dataperiod BETWEEN $arraydataperiodcount[0] AND $arraydataperiodcount[1] ";
}
if ($age !="" && $age !="Empty" )
{
$sql.=" and age BETWEEN $agebetween[0] AND $agebetween[1] ";
}
$sql.="LIMIT $start, $limit";
print $sql;
$result1 = mysql_query($sql);
/* 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.
//print $lastpage;
$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";
}
//echo $sql;
//print $sql;
while($rows=mysql_fetch_assoc($result1))
{
echo '<tr>';
echo ' <td class="edit contactgroup '.$rows["id"].'" >'.$rows["contactgroup"].'</td>';
if($media == "sms")
{
echo' <td class="edit media '.$rows["id"].'" >'.$rows["media"].'</td>';
}
else if($media == "email")
{
echo' <td class="edit media '.$rows["id"].'" >'.$rows["media2"].'</td>';
}
else
{
echo' <td class="edit media '.$rows["id"].'" >'.$rows["media"].'</td>';
}
echo ' <td class="edit email '.$rows["id"].'">'.$rows["email1"].'</td>
<td class="edit nationality '.$rows["id"].'">'.$rows["nationality"].'</td>
<td class="edit country '.$rows["id"].'">'.$rows["country3"].'</td>
<td class="edit twon '.$rows["id"].'">'.$rows["twon"].'</td>
<td class="edit area '.$rows["id"].'">'.$rows["area"].'</td>
<td class="edit gender '.$rows["id"].'">'.$rows["gender"].'</td>
<td class="edit married '.$rows["id"].'">'.$rows["married"].'</td>
<td class="edit children '.$rows["id"].'">'.$rows["children"].'</td>
<td class="edit driverlicense '.$rows["id"].'">'.$rows["driverslicense"].'</td>
</tr>';
}
?>
<?php echo $pagination; ?>
答案 0 :(得分：0)
试试这个
mysql_num_rows();
它将为您提供数据库中的结果数量。
答案 1 :(得分：0)
以下是如何计算从MySQL查询返回的行数。
$conn = mysqli_connect($host,$user,$password,$database);
$query = "SELECT * FROM $tbl_name";
$result = mysqli_query($conn,$query);
$count_rows = mysqli_num_rows($result);
echo 'number of rows: ' . $count_rows;
PHP手册参考：http://www.php.net/manual/en/mysqli-result.num-rows.php
注意：自PHP 5.5起，不推荐使用mysql_query（）。你应该使用mysqli_query（）
答案 2 :(得分：0)
你可以运行两次查询，一次有限制，第二次没有限制，如thinkkso所说，然后做
mysql_num_rows($result);
或者您可以尝试尝试PHP计数功能，看看它是否有效.. [我不确定这是否有效]
$rows = count($result);
答案 3 :(得分：0)
如果要在同一查询中返回完整的表数量和分页数据，可以执行以下操作：
SELECT column1, column2, column3
FROM main_table
CROSS JOIN (SELECT COUNT(*) AS table_qty FROM main_table) table_count
LIMIT 10;
此查询将返回列column1, column2, column3, table_qty。这可以通过将总表数量计算为table_qty，然后使用CROSS JOIN将其附加到所有结果记录来实现。
修改：您已经拥有$total_pages中的总表记录数量，请改用它。
$query = "SELECT COUNT(*) as num FROM $tbl_name";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages['num'];