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我一直在做一些代码，这实际上从MySQL数据下拉并通过PHP显示。结果在页面上一次显示3个，我从来没有遇到任何问题。php sql结果与分页
我最近在数据库项目中添加了一个字段：'售罄'和'库存'，并试图（悲惨地）得到两个搜索 - 首先我要显示库存中的项目，然后是那些已售罄。不幸的是，我使用多年的分页代码并不喜欢我运行两个PHP查询，并且只是在页面中添加3个额外的项目（在适用的情况下）。
的完整代码：
<form name="form1" method="get" action="products.php">
<?php
if(!empty($msg)) {
echo $msg[0];
}
?>
<input name="q" class="textInput2" input type="search" id="q" placeholder="search image name..." autosave="applestyle_srch" results="5" onKeyUp="applesearch.onChange('srch_fld','srch_clear')" />
<input name="doSearch" type="hidden" id="doSearch2" value="Search">
<?php if ($get['doSearch'] == 'Search') {
// find out how many rows are in the table
$sql = "SELECT COUNT(*) FROM products";
$result = mysql_query($sql) or trigger_error("SQL", E_USER_ERROR);
$r = mysql_fetch_row($result);
$numrows = $r[0];
// number of rows to show per page
$rowsperpage = 3;
// find out total pages
$totalpages = ceil($numrows/$rowsperpage);
// get the current page or set a default
if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) {
// cast var as int
$currentpage = (int) $_GET['currentpage'];
} else {
// default page num
$currentpage = 1;
} // end if
// if current page is greater than total pages...
if ($currentpage > $totalpages) {
// set current page to last page
$currentpage = $totalpages;
} // end if
// if current page is less than first page...
if ($currentpage < 1) {
// set current page to first page
$currentpage = 1;
} // end if
// the offset of the list, based on current page
$offset = ($currentpage - 1) * $rowsperpage;
if($get['q'] == '') {
$sql = "SELECT * FROM products WHERE status='sold' ORDER BY `price` ASC LIMIT $offset, $rowsperpage";
}
else {
$sql = "select * from products where `title` like '%$_REQUEST[q]%' LIMIT $offset, $rowsperpage";
}
$result1 = mysql_query($sql) or trigger_error("SQL", E_USER_ERROR);
if($get['q'] == '') {
$sql = "SELECT * FROM products WHERE status='in stock' ORDER BY `price` ASC LIMIT $offset, $rowsperpage";
}
else {
$sql = "select * from products where `title` like '%$_REQUEST[q]%' LIMIT $offset, $rowsperpage";
}
$result2 = mysql_query($sql) or trigger_error("SQL", E_USER_ERROR);
?></form></div>
<div id="pagination" style="float:right; display:inline; margin-right:10px;">
page:<?php
/****** build the pagination links ******/
// if not on page 1, don't show back links
if ($currentpage > 1) {
// show << link to go back to page 1
echo " <a href='{$_SERVER['PHP_SELF']}?q=&doSearch=Search¤tpage=1'><<</a> ";
// get previous page num
$prevpage = $currentpage - 1;
// show < link to go back to 1 page
echo " <a href='{$_SERVER['PHP_SELF']}?q=&doSearch=Search¤tpage=$prevpage'><</a> ";
} // end if
// range of num links to show
$range = 3;
// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) {
// if it's a valid page number...
if (($x > 0) && ($x <= $totalpages)) {
// if we're on current page...
if ($x == $currentpage) {
// 'highlight' it but don't make a link
echo " [<b>$x</b>] ";
// if not current page...
} else {
// make it a link
echo " <a href='{$_SERVER['PHP_SELF']}?q=&doSearch=Search¤tpage=$x'>$x</a> ";
} // end else
} // end if
} // end for
// if not on last page, show forward and last page links
if ($currentpage != $totalpages) {
// get next page
$nextpage = $currentpage + 1;
// echo forward link for next page
echo " <a href='{$_SERVER['PHP_SELF']}?q=&doSearch=Search¤tpage=$nextpage'>></a> ";
// echo forward link for lastpage
echo " <a href='{$_SERVER['PHP_SELF']}?q=&doSearch=Search¤tpage=$totalpages'>>></a> ";
} // end if
/****** end build pagination links ******/
?>
</div>
</div>
</div>
</div></p>
<div class="category-products">
<form name "searchform" action="products.php" method="post">
<?php while($rrows = mysql_fetch_array($result2))
{
echo '<div><div id="searchimage"><a class="product-image" href="productspec.php?productcode=' . $rrows['productcode'] . '" title="' . $rrows['title'] . '">';
echo '<img src="' . $rrows['photo'] . '" width="225" height="150" alt="" title="' . $rrows['title'] . '" /></a></div>';
echo '<div id="searchdetails">
<table width="100%" border="0" cellspacing="0" cellpadding="0"><tr>
<td height="30"><h3 class="product-name"><a href="productspec.php?productcode=' . $rrows['productcode'] . '" title="' . $rrows['title'] . '">' . $rrows['title'] . '</a></h3>';
echo '</td>
</tr>
<tr>
<td>' . $rrows['desc'] . '';
echo '</td>
</tr>
<tr>
<td><h3 class="price">£' . $rrows['price'] . ' ' . $rrows['pandp'] . '</h3>'; echo '</td>
</tr>
</table></div>';
echo '</div>';
}
?>
<?php while($rrows = mysql_fetch_array($result1))
{
echo '<div><div id="searchimage"><a class="product-image" href="productspec.php?productcode=' . $rrows['productcode'] . '" title="' . $rrows['title'] . '">';
echo '<img src="' . $rrows['photo'] . '" width="225" height="150" alt="" title="' . $rrows['title'] . '" /><img src="soldout.png" id="soldout" /></a></div>';
echo '<div id="searchdetails">
<table width="100%" border="0" cellspacing="0" cellpadding="0"><tr>
<td height="30"><h3 class="product-name"><a href="productspec.php?productcode=' . $rrows['productcode'] . '" title="' . $rrows['title'] . '">' . $rrows['title'] . '</a></h3>';
echo '</td>
</tr>
<tr>
<td>' . $rrows['desc'] . '';
echo '</td>
</tr>
<tr>
<td><h3 class="price">£' . $rrows['price'] . ' ' . $rrows['pandp'] . '</h3>'; echo '</td>
</tr>
</table></div>';
echo '</div>';
}
?>
</form> <?php } ?>
我完全可以理解的是，代码可能是更清洁 - （我没有现在的修订过程分页多年来，它一直工作） - 但我假设必须有可以更简单地显示表中的所有项目，而不必同时运行$ result1和$ result2查询。
任何帮助非常感谢！
JD