Question

我正在尝试使用输入创建基本高级搜索，然后搜索在下拉列表中选择了匹配类别字段的任何结果，然后搜索＆＃34; advancedSearch＆＃中company_name的匹配关键字字段34 ;.我已经到了可以使用下拉菜单然后显示匹配数据的阶段，但是我在查询输入时遇到了麻烦。

这是我在index.php

中的表单代码

<form action="advanced-search.php" method="POST">   
    <input id="advancedInput" placeholder="Advanced Search" type="search" name="advancedSearch"> 

    <?php 
        $sqlSelect="SELECT category FROM categories";
        $result = $db -> query ($sqlSelect);

        echo "<select id=\"selectAdvanced\" name=\"value\">"; 
        echo "<option></option>";

        while ($row = mysqli_fetch_array($result)) {
            $rows[] = $row;
        }

        foreach ($rows as $row) {
            print "<option value='" . $row['category'] . "'>" . $row['category'] . "</option>";
        }

        echo "</select>";
    ?>

    <input type="submit" value="search"/>
</form>

以下是我的advanced-search.php

中的代码

<?php    

if(isset($_POST['value']) && !empty($_POST['value'])) {

    $username = trim(strip_tags($_POST['value']));

    include('dbConfig.php');

    if (mysqli_connect_errno()) {
        printf("Can't connect: %s\n", mysqli_connect_error());
        exit();
    }
    $where = ($username == "category")? "" : " WHERE category = '$username'";
    $sql = "SELECT * FROM company_listings" . $where; // Create Query 

    $result = mysqli_query($db, $sql);  // Run Query

    echo "<table border=1><tr><th>id</th><th>name</th><th>created</th></tr>";

    while($row = mysqli_fetch_array($result, MYSQLI_ASSOC)){
        echo "<tr>";
        echo "<td>" . $row['id'] . "</td>";
        echo "<td>" .  $row['company_name'] . "</td>";
        echo "<td>" . $row['created'] . "</td>";
        echo "</tr>";    
    }

    echo "</table>";
    mysqli_free_result($result);
}

此代码非常适合从下拉列表中回显匹配的类别，但我无法确定如何从＆＃34;高级搜索＆＃34;中进一步查询搜索。输入

非常感谢任何帮助。

Answer 1

我在我的查询中使用AND并且使用提交时的请求我能够得到我之后的内容...感谢@ADyson的轻推。我在下面添加了更新的advanced-search.php文件;

if(isset($_REQUEST['submit'])){

$username = (($_POST['value']));

$advanced = (($_POST['advancedSearch']));

include('dbConfig.php');

if (mysqli_connect_errno()) {
    printf("Can't connect: %s\n", mysqli_connect_error());
    exit();
}

$sql=" SELECT * FROM company_listings WHERE company_name like '%".$advanced."%' AND category LIKE '%".$username."%'";

$result = mysqli_query($db, $sql);  // Run Query

echo "<table border=1><tr><th>id</th><th>name</th><th>created</th></tr>";

while($row = mysqli_fetch_array($result, MYSQLI_ASSOC)){
    echo "<tr>";
    echo "<td>" . $row['id'] . "</td>";
    echo "<td>" .  $row['company_name'] . "</td>";
    echo "<td>" . $row['created'] . "</td>";
    echo "</tr>";    
}

echo "</table>";
mysqli_free_result($result);
}

php - 下拉搜索表单

1 个答案: