Php 搜索页上的分页返回错误
我正在做一个项目，应该有一个PHP/MYSQL搜索页面。搜索页面上有下一个、最后一个、上一个和第一个不起作用的导航链接。当我单击“下一步”或“上一步”在下一页上获取结果时，它会给我一个错误“搜索词未找到”。这是我的密码：Php 搜索页上的分页返回错误,php,mysql,search,pagination,Php,Mysql,Search,Pagination,我正在做一个项目，应该有一个PHP/MYSQL搜索页面。搜索页面上有下一个、最后一个、上一个和第一个不起作用的导航链接。当我单击“下一步”或“上一步”在下一页上获取结果时，它会给我一个错误“搜索词未找到”。这是我的密码： <form name="search" method="post" action="search_ind.php"> <h4> <font color="#FFFFFF">Seach for:
<form name="search" method="post" action="search_ind.php">
<h4>
<font color="#FFFFFF">Seach for:
<input type="text" name="term" />
in
<select name="field">
<option value="firstname">First Name</option>
<option value="lastname">Last Name</option>
<option value="phone">Phone Number</option>
<option value="street">Street</option>
<option value="district">District</option>
<option value="region">Region</option>
</select>
<input type="submit" name="search2" value="Search" />
</font></h4>
</form>
<h1 align="center"><span class="style6"><font color="#FFFFFF">Search Results</font></span>
<p class="style1 style3"></h1>
<div align="center" class="style4">
<p class="style5">
<?php
$host = "localhost";
$username = "root";
$password = "";
$database = "oab";
$term = $_POST['term'];
//If they did not enter a search term we give them an error
if ($term == "") {
echo "<p>You forgot to enter a search term!!! Please enter a search term and try again...";
exit;
}
// check for a search parameter
if (!isset($term)) {
echo "<p>We dont seem to have a search parameter!</p>";
exit;
}
mysql_connect($host, $username, $password);
@mysql_select_db($database) or die("Unable to select database");
if (isset($_GET['pageno'])) {
$pageno = $_GET['pageno'];
} else {
$pageno = 1;
} // if
$query = "SELECT count(*) FROM individual WHERE FName like '%$term%' OR LName like '%$term%' OR Phone1 like '%$term%' OR Phone2 like '%$term%' OR Street like '%$term%' OR District like '%$term%' OR Region like '%$term%'";
$result = mysql_query($query);
$query_data = mysql_fetch_row($result);
$numrows = $query_data[0];
$rows_per_page = 10;
$lastpage = ceil($numrows / $rows_per_page);
$pageno = (int) $pageno;
if ($pageno > $lastpage) {
$pageno = $lastpage;
} // if
if ($pageno < 1) {
$pageno = 1;
} // if
$limit = 'LIMIT ' . ($pageno - 1) * $rows_per_page . ',' . $rows_per_page;
$query = "select * from individual WHERE FName like '%$term%' OR LName like '%$term%' OR Phone1 like '%$term%' OR Phone2 like '%$term%' OR Street like '%$term%' OR District like '%$term%' OR Region like '%$term%' ORDER BY LName $limit";
$result = mysql_query($query);
$num = mysql_numrows($result);
if ($pageno == 1) {
echo " FIRST PREV ";
} else {
echo " <a href='{$_SERVER['PHP_SELF']}?pageno=1'>FIRST</a> ";
$prevpage = $pageno - 1;
echo " <a href='{$_SERVER['PHP_SELF']}?pageno=$prevpage'>PREV</a> ";
} // if
echo " ( Page $pageno of $lastpage ) ";
if ($pageno == $lastpage) {
echo " NEXT LAST ";
} else {
$nextpage = $pageno + 1;
echo " <a href='{$_SERVER['PHP_SELF']}?pageno=$nextpage'>NEXT</a> ";
echo " <a href='{$_SERVER['PHP_SELF']}?pageno=$lastpage'>LAST</a> ";
} // if
// If we have no results, offer a google search as an alternative
if ($num == 0) {
echo "<h4>Results</h4>";
echo "<p>Sorry, your search for: "" . $term . "" returned zero results</p>";
// google
echo "<p><a href=\"http://www.google.com/search?q="
. $term . "\" target=\"_blank\" title=\"Look up
" . $term . " on Google\">Click here</a> to try the
search on google</p>";
}
mysql_close();
?>
</p>
</div>
<table border="1" cellspacing="2" cellpadding="2">
<tr>
<th><font face="Arial, Helvetica, sans-serif" color="#FFFFFF">FULL NAME</font></th>
<th><font face="Arial, Helvetica, sans-serif" color="#FFFFFF">PHONE 1</font></th>
<th><font face="Arial, Helvetica, sans-serif" color="#FFFFFF">PHONE 2</font></th>
<th><font face="Arial, Helvetica, sans-serif" color="#FFFFFF">PHYSICAL ADDRESS</font></th>
<th><font face="Arial, Helvetica, sans-serif" color="#FFFFFF">POSTAL ADDRESS</font></th>
<th><font face="Arial, Helvetica, sans-serif" color="#FFFFFF">E-MAIL</font></th>
</tr>
<?php
$i = 0;
while ($i < $num) {
$f1 = mysql_result($result, $i, "Ind_Id");
$f12 = mysql_result($result, $i, "FName");
$f13 = mysql_result($result, $i, "MName");
$f2 = mysql_result($result, $i, "LName");
$f3 = mysql_result($result, $i, "Phone1");
$f4 = mysql_result($result, $i, "Phone2");
$f5 = mysql_result($result, $i, "Physical_Address");
$f6 = mysql_result($result, $i, "Postal_Address");
$f7 = mysql_result($result, $i, "Email");
$f8 = mysql_result($result, $i, "Street");
$f9 = mysql_result($result, $i, "District");
$f10 = mysql_result($result, $i, "Region");
$f11 = mysql_result($result, $i, "Country");
?>
<tr>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f2; ?></font>
<font face="Arial, Helvetica, sans-serif"><?php echo $f12; ?></font>
<font face="Arial, Helvetica, sans-serif"><?php echo $f13; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f3; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f4; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f5; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f6; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f7; ?></font></td>
</tr>
<?php
$i++;
}
?>
</table>
</body>
</html>
搜索：
在里面
名字
姓
电话号码
街头
地区
区域
搜索结果
你不能像在表单和链接中那样发布东西。您需要在每个链接的末尾使用&term=$term，并将$term更改为$term=$\u REQUEST['term'] 这可能是因为每次用户单击next/prev时，您的搜索都需要发布到服务器上
更改$term=$\u POST['term']
到$term=$\u GET['term']，然后每当您输出指向下一个/上一个等的链接时，请确保也将术语添加到查询字符串中
printf("<a href='%s?pageno=%d&term=%s'>PREV</a>", $_SERVER['PHP_SELF'], $prevpage, $term);
printf（“，$”服务器['PHP\u SELF'，$prevpage，$term）；
这样，每次用户单击next/prev时，术语都会发送到服务器
您可能应该考虑在数据库查询中使用类似的库，因为您确实面临注入攻击