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問題1：我的腳本分頁不起作用。在20個條目之後，它僅顯示最近的20個條目並且不將它們分成不同的頁面。代碼如下：複雜的查詢+分頁腳本
問題2：我正在使用相同的分頁腳本進行其他操作，並在那裏正確分割，但在下一頁它顯示了與第1頁相同的結果。我使用的腳本除外第二腳本：
$query = "SELECT COUNT(*) as num FROM table where id =
'$uid' ORDER BY id DESC";
和該SQL是：
$sql="SELECT table_one.field_id, table_constant.field_name,
table_one.field_2, table_one.field_3 FROM table_one LEFT
JOIN table_constant ON table_one.common_field
= table_constant.common_field WHERE table_constant.u_id = '$uid'";
代碼：
<?php
$tbl_name=""; //not using this since i am doing a union
$adjacents = 3;
$query = "SELECT COUNT(*) as num
from table_one LEFT JOIN table_constant on table_one.c_id
= table_constant.c_id
where table_constant.user_id = '$uid'
UNION
SELECT COUNT(*) as num
from table_two LEFT JOIN table_constant on table_two.c_id
= table_constant.c_id
where table_two.added_by = '$uid'
UNION
SELECT COUNT(*) as num
from table_three LEFT JOIN table_constant ON table_three.c_id
= table_constant.c_id
where table_constant.user_id = '$uid'
UNION
SELECT COUNT(*) as num
from table_four LEFT JOIN table_constant ON table_four.c_id
= table_constant.c_id
where table_constant.user_id = '$uid'
ORDER BY date_time_added DESC";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages[num];
$targetpage = "page.php";
$limit = 20;
$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
$sql = "select table_one.field1, table_constant.field1,
table_one.field2, table_one.field3, table_one.field4,
table_one.field5, table_constant.c_id
from table_one LEFT JOIN table_constant on table_one.field1
= table_constant.c_id
where table_constant.user_id = '$uid'
UNION
select table_two.field1, table_constant.field1, table_two.field2,
table_two.field3, table_two.field4, table_two.field5, table_constant.c_id
from table_two LEFT JOIN table_constant on table_two.c_id
= table_constant.c_id
where table_two.added_by = '$uid'
UNION
select table_three.field1, table_constant.field1, table_three.field2,
table_three.field3, table_three.field4, table_three.field5,
table_constant.c_id
from table_three LEFT JOIN table_constant ON table_three.c_id
= table_constant.c_id
where table_constant.user_id = '$uid'
UNION
select table_four.field1, table_constant.field1, table_four.field2,
table_four.field3, table_four.field4, table_four.field5,
table_constant.c_id
from table_four LEFT JOIN table_constant ON table_four.c_id
= table_constant.c_id
where table_constant.user_id = '$uid'
ORDER BY date DESC LIMIT $start, $limit";
$result = mysql_query($sql);
$query = mysql_query($sql) or die ("Error: ".mysql_error());
$result = mysql_query($sql);
if ($result == "")
{
echo "";
}
echo "";
$rows = mysql_num_rows($result);
if($rows == 0)
{
print("");
}
elseif($rows > 0)
{
while($row = mysql_fetch_array($query))
{
$fields = $row['field']; //Table one Field 1
$fields2 = $row['field']; //Table Constant Field 1
$fields3 = $row['field'];// Table One field 4
$fields4 = $row['field'];//Table Constant Field 2
print("$fields<br>$fields2<br>$fields3<br>$fields4");
}
}
if(mysql_num_rows($result) < 1) {
echo "";
}
/* Setup page vars for display. */
if ($page == 0) $page = 1; //if no page var is given, default to 1.
//next page is page + 1
$lastpage = ceil($total_pages/$limit);
//lastpage is = total pages/items per page,
rounded up.
$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)
{
$pagination .= "<div class=\"pagination\"></div>";
//previous button
if ($page > 1)
$pagination.= "";
else
$pagination.= "";
//pages
if ($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
$pagination.= "<a id=\"numberhighlighter\" href=\"$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.= "";
else
$pagination.= "";
}
?>
<div id="page">
<?php
print("$pagination");
?>
謝謝！