我遇到了问题，我想创建一个搜索框来从数据库中搜索记录。但是“ index.php”显示了所有加载的记录。我希望它只显示我搜索的记录。
'index.php'
if(isset($_POST['search']))
{
$valueToSearch = $_POST['valueToSearch'];
// search in all table columns
// using concat mysql function
$query = "SELECT * FROM `test` WHERE concat(`id`,`naam`,`website`) LIKE '%".$valueToSearch."%'";
$search_result = filterTable($query);
}
else {
$query = "SELECT * FROM `test`";
$search_result = filterTable($query);
}
// function to connect and execute the query
function filterTable($query)
{
$connect = mysqli_connect("localhost","root","","livesearch");
$filter_Result = mysqli_query($connect,$query);
return $filter_Result;
}
?>
<!DOCTYPE html>
<html>
<head>
<title>PHP HTML TABLE DATA SEARCH</title>
<style>
table,tr,th,td
{
border: 1px solid black;
}
</style>
</head>
<body>
<form action="index.php" method="post">
<input type="text" name="valueToSearch" placeholder="Value To Search"><br><br>
<input type="submit" name="search" value="Filter"><br><br>
<table>
<tr>
<th>Id</th>
<th>Servers</th>
<th>Website</th>
</tr>
<!-- populate table from mysql database -->
<?php while($row = mysqli_fetch_array($search_result)):?>
<tr>
<td><?php echo $row['id'];?></td>
<td><?php echo $row['naam'];?></td>
<td><?php echo $row['website'];?></td>
</tr>
<?php endwhile;?>
</table>
</form>
</body>
</html>
我想当我什么都不输入时什么也不会出现，而是出现所有记录。
有人可以帮助我吗？