PHP搜索功能....使用來自同一變量的兩個條件

Question

因此，我正在使用我的搜索引擎腳本，它運行良好。但我想添加功能來搜索同一列中的兩個選擇。例如，我希望搜索引擎爲用戶提供在安大略省和阿爾伯塔省獲得結果的能力。我的輸入表單允許用戶在同一字段中選中兩個框，但我的腳本僅搜索所選的第二個條件。

這是搜索腳本。

<?php 
    require_once("models/config.php"); 
    define("NUMBER_PER_PAGE", 5); 

    function pagination($current_page_number, $total_records_found, $query_string = null) 
    { 
     $page = 1; 

     echo "Page: "; 

     for ($total_pages = ($total_records_found/NUMBER_PER_PAGE); $total_pages > 0; $total_pages--) 
     { 
      if ($page != $current_page_number) 
       echo "<a href=\"?page=$page" . (($query_string) ? "&$query_string" : "") . "\">"; 

      echo "$page "; 

      if ($page != $current_page_number) 
       echo "</a>"; 

      $page++; 
     } 
    } 

    $page = ($_GET['page']) ? $_GET['page'] : 1; 
    $start = ($page-1) * NUMBER_PER_PAGE; 

    $personid = ($_POST['personid']) ? $_POST['personid'] : $_GET['personid']; 
    $firstname = ($_POST['firstname']) ? $_POST['firstname'] : $_GET['firstname']; 
    $surname = ($_POST['surname']) ? $_POST['surname'] : $_GET['surname']; 
    $address = ($_POST['address']) ? $_POST['address'] : $_GET['address']; 
    $city = ($_POST['city']) ? $_POST['city'] : $_GET['city']; 
    $province =($_POST['province']) ? $_POST['province'] : $_GET['province']; 
    $postalcode = ($_POST['postalcode']) ? $_POST['postalcode'] : $_GET['postalcode']; 
    $phone = ($_POST['phone']) ? $_POST['phone'] : $_GET['phone']; 
    $email = ($_POST['email']) ? $_POST['email'] : $_GET['email']; 

    $sql = "SELECT * FROM persons WHERE 1=1"; 

    if ($personid) 
     $sql .= " AND personid='" . mysqli_real_escape_string($mysqli,$personid) . "'"; 

    if ($firstname) 
     $sql .= " AND firstname='" . mysqli_real_escape_string($mysqli,$firstname) . "'"; 

    if ($surname) 
     $sql .= " AND surname='" . mysqli_real_escape_string($mysqli,$surname) . "'"; 

    if ($address) 
     $sql .= " AND address='" . mysqli_real_escape_string($mysqli,$address) . "'"; 

    if ($city) 
     $sql .= " AND city='" . mysqli_real_escape_string($mysqli,$city) . "'"; 

    if ($province) 
     $sql .= " AND province='" . mysqli_real_escape_string($mysqli,$province) . "'"; 

    if ($postalcode) 
     $sql .= " AND postalcode='" . mysqli_real_escape_string($mysqli,$postalcode) . "'"; 

    if ($phone) 
     $sql .= " AND phone='" . mysqli_real_escape_string($mysqli,$phone) . "'"; 

    if ($email) 
     $sql .= " AND email='" . mysqli_real_escape_string($mysqli,$email) . "'"; 

    $total_records = mysqli_num_rows(mysqli_query($mysqli,$sql)); 

    $sql .= " ORDER BY surname"; 
    $sql .= " LIMIT $start, " . NUMBER_PER_PAGE; 


    pagination($page, $total_records, "personid=$personid&firstname=$firstname&surname=$surname&address=$address&city=$city&province=$province&postalcode=$postalcode&phone=phone&email=$email"); 


    $loop = mysqli_query($mysqli,$sql) 
     or die ('cannot run the query because: ' . mysqli_error($mysqli,i)); 

    echo "<table border='1' cellpadding='10'>"; 
      echo "<tr> <th>First Name</th> <th>Surname</th> <th>Email</th> <th></th> <th></th></tr>"; 

    while ($record = mysqli_fetch_assoc($loop)) { 
     echo "<tr>"; 
        echo '<td>' . $record['firstname'] . '</td>'; 
        echo '<td>' . $record['surname'] . '</td>'; 
        echo '<td>' . $record['email'] . '</td>'; 

        echo ("<td><a href=\"records.php?$record[personid]\">Edit</a></td>"); 

        echo '<td><a href="delete.php?id=' . $record['personid'] . '">Delete</a></td>'; 
        echo "</tr>"; 


    } 
    echo "</table>"; 

    echo "<center>" . number_format($total_records) . " search results found</center>"; 


    pagination($page, $total_records, "personid=$personid&firstname=$firstname&surname=$surname&address=$address&city=$city&province=$province&postalcode=$postalcode&phone=phone&email=$email"); 
    ?> 

如果你需要看看吧，這裏是我的腳本的一部分呼應出省作爲一個複選框列表（當然還有很多缺失的名單，但它只是給你一個想法）

<p><b>Province:</b> 
<? 
while ($row = mysqli_fetch_assoc($result)) { 
echo "<input type='checkbox' name='province' value=' {$row['province']} '> {$row['province']} "; 
    } 
    ?> </p><br /> 

關於如何使這項工作的任何想法？提前致謝。

Answer 1

使複選框的數組：

name='province[]' 

implode然後在陣列並使用IN()構建體在查詢中。

WHERE province IN(?) 

如果您使用mysqli，請使用預準備語句mysqli_stmt_bind_param來構造查詢。我更喜歡PDO。