与MySQL db链接的html搜索表单

时间:2018-03-11 17:51:15

标签: php html mysql sql

我是PHP和MySQL的新手,很难根据包含多个字段的html搜索表单从db中提取数据。 第一个字段(*必填)=选择选项(选择名称= area_name),第二 =输入类型:学校名称,第三 = date,4-5th = time_from,time_to。问题:如何提取讲师'基于以上领域的名称?

下面是PHP代码(忽略db connect,它正在工作):

    if (!empty($_REQUEST['term'])) {
    $term = mysql_real_escape_string($_REQUEST['term']);     

    (line 8)
    $sql = mysqli_query("SELECT lecturer_name, city, phone, e-mail * FROM 
    area_name where area_name LIKE '$search'") UNION ("SELECT * FROM school 
    where school_name LIKE '$search'") UNION ("SELECT * FROM schedule where 
    date LIKE '$search'") UNION ("SELECT * FROM schedule where time_from 
    LIKE '$search'") UNION ("SELECT * FROM schedule where time_to LIKE 
   '$search'");
    $r_query = mysqli_query($sql); 

    echo "<table border='1' cellpadding='5'>";
    echo "<tr> <th>Lecturer Name</th> <th>City</th> <th>Phone</th> 
    <th>Email</th> <th></th> <th></th></tr>";

    // loop through results of database query, displaying them in the table
    while ($row = mysql_fetch_array($r_query)){

            // echo out the contents of each row into a table
            echo "<tr>";
            echo '<td>' . $row['lecturer_name'] . '</td>';
            echo '<td>' . $row['city'] . '</td>';
            echo '<td>' . $row['phone'] . '</td>';
            echo '<td>' . $row['email'] . '</td>';
            echo "</tr>"; 
    } 

    // close table>
    echo "</table>"; 

    }

    $conn->close();

在结果中,出现以下错误:

  

解析错误:语法错误,意外&#39; UNION&#39; (T_STRING)in   第8行的D:\ XAMPP \ htdocs \ trv \ search_lecturer.php

我无法获得如何将html字段名称与mysql连接。非常感谢任何帮助!

1 个答案:

答案 0 :(得分:0)

UNION是SQL运算符,而不是PHP。您在PHP语法中有错误。

$sql = mysqli_query("(SELECT .....) UNION (SELECT .....) UNION .....");

P.S。 *表示所有字段,如果指定字段,则* isn不需要。

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