我已经创建了我的PHP页面，我已经搜索了查询字段和按字母顺序搜索。提交查询后，我在同一页上打印结果。查询工作得很好，但我希望结果显示在相同的地方，我从字母搜索得到结果。即按字母顺序搜索是消失后，结果来自搜索框。如何在网页中同时保留它们?
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="GET">
<input type="text" name="query" />
<input type="submit" value="Search" />
</form>
<?php
session_start();
$con=mysqli_connect("localhost","root","","journalskart"); /*Database Connection*/
//include('inc/search.php');
$errormsg= "No Record Found...!";
//search box script start from here
$alpha = $_GET['query'];
$min_length = 3;
if(strlen($alpha) >= $min_length){ // if query length is more or equal minimum length then
$alpha = htmlspecialchars($alpha);
// changes characters used in html to their equivalents, for example: < to >
$alpha = mysqli_real_escape_string($con, $alpha);
// makes sure nobody uses SQL injection
$q1 = mysqli_query($con,"SELECT * FROM vendor1
WHERE (title LIKE '%".$alpha."%') OR (publisher LIKE '%".$alpha."%')") or die(mysqli_error($con));
//$noofresult = mysqli_num_rows($q1);
//echo "$noofresult Result Found<br/>";
$num_rows=mysqli_num_rows($q1);
if($num_rows > 0)
{ // if one or more rows are returned do following
while($roww = mysqli_fetch_array($q1)){
$_SESSION["Title"] = $roww['title'];
$_SESSION["Fullset"] = $roww["full_set"];
$_SESSION["ISSN"] = $roww["issn"];
$_SESSION["Publisher"] = $roww["publisher"];
$_SESSION["Freq"] = $roww["freq"];
$_SESSION["Volume"] = $roww["volume"];
$_SESSION["Issue"] = $roww["issue"];
$_SESSION["Year"] = $roww["year"];
$_SESSION["Price"] = $roww["price"];
}
}
else{ // if there is no matching rows do following
echo "No results";
}
}//search box script end here
else{
$alpha="%";
if (isset($_REQUEST['alpha'])) {
$alpha = $_REQUEST['alpha']."%";
}
$q1 = mysqli_query($con, "select * from vendor1 where title like '$alpha%' " );
?>
<div >
<form action="" method="post" >
<table >
<tr>
<td>
<div style="float:left;">
<CENTER>
<FONT COLOR=Green>Sort by Alphabet:</FONT>
<A HREF="<?php echo $_SERVER['PHP_SELF']; ?>" >All</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=A">A</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=B">B</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=C">C</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=D">D</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=E">E</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=F">F</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=G">G</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=H">H</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=I">I</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=J">J</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=K">K</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=L">L</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=M">M</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=N">N</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=O">O</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=P">P</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=Q">Q</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=R">R</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=S">S</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=T">T</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=U">U</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=V">V</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=W">W</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=X">X</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=Y">Y</A>
<FONT COLOR=Green>|</FONT> <A HREF="?alpha=Z">Z</A>
</CENTER>
</div>
</td>
</tr>
<tr>
<th>Title</th>
<th>Full Set</th>
<th>ISSN</th>
<th>Publisher</th>
<th>Freq</th>
<th>Volume</th>
<th>Issue</th>
<th>Year</th>
<th>Price</th>
</tr>
<tbody>
<?php
$i=1;
$num_rows=mysqli_num_rows($q1);
if($num_rows==0)
{
?>
<div align="center">
<div class="alert alert-danger alert-dismissable">
<?php echo $errormsg; ?>
</div>
</div>
<?php
}
else
{
while($roww=mysqli_fetch_array($q1))
{
$_SESSION["Title"] = $roww['title'];
$_SESSION["Fullset"] = $roww["full_set"];
$_SESSION["ISSN"] = $roww["issn"];
$_SESSION["Publisher"] = $roww["publisher"];
$_SESSION["Freq"] = $roww["freq"];
$_SESSION["Volume"] = $roww["volume"];
$_SESSION["Issue"] = $roww["issue"];
$_SESSION["Year"] = $roww["year"];
$_SESSION["Price"] = $roww["price"];
?>
<tr>
<td>
<div style="height:100px;float:left;">
<input name="" type="checkbox" value="">
</div>
<div >
<a href="#"> <b><?php echo $_SESSION["Title"]; ?></b></a>
<td><?php echo $_SESSION["Fullset"]; ?></td>
<td><?php echo $_SESSION["ISSN"]; ?></td>
<td><?php echo $_SESSION["Publisher"]; ?></td>
<td><?php echo $_SESSION["Freq"]; ?></td>
<td><?php echo $_SESSION["Volume"]; ?></td>
<td><?php echo $_SESSION["Issue"]; ?></td>
<td><?php echo $_SESSION["Year"]; ?></td>
<td><?php echo $_SESSION["Price"]; ?></td>
</div></td>
</tr>
<?php }
$i++;
}
}
echo "$num_rows Results Found";
?>
</tbody>
</table>
</form>
</div>
</body></html>
<SCRIPT LANGUAGE=JavaScript>
<!--
document.write(ALPHABET())
//-->
</SCRIPT>
尝试使用基于条件的检查来查看是否进行了搜索
<?php
//general declarations
if ($_SERVER["REQUEST_METHOD"] == "GET") {
//body of your php code execution
}
?>php
<html>
//your html body
</html>