Question

我有一個php循環，用於查詢數據庫併發送電子郵件給羣組。在這個例子中，它返回兩行。

問題是它包含第二次運行中第一次運行的結果。

我的代碼：

$query = mysql_query("SELECT * FROM tasks WHERE DATE(`show_date`) = (  CURDATE() - INTERVAL 1 DAY) AND drive_folder_empty = 'empty' AND drive_folder IS NOT NULL;"); 
    while ($row = mysql_fetch_assoc($query)){ 

     if (!empty($row['robert'])){$robert_email = "robert email"; $robert_phone = "robert phone";} 
     if (!empty($row['duncan'])){$duncan_email = "duncan email"; $duncan_phone = "duncan phone";} 
     if (!empty($row['mike'])){$mike_email = "mike email"; $mike_phone = "mike phone";} 
     if (!empty($row['james'])){$james_email = "james email"; $james_phone = "james phone";} 


     $email_array = array($robert_email, $duncan_email, $mike_email, $james_email);    
     $filtered_email = array_filter($email_array); 

     print_r($filtered_email); 

     $mail_to = implode(', ', $filtered_email); 

     $phone_array = array($robert_phone, $duncan_phone, $mike_phone, $james_phone);    
     $filtered_phone = array_filter($phone_array);   
     $cc = implode(', ', $filtered_phone);   
     if (!empty($mail_to)) 
      sendEmail($mail_to, $drive_url, $date_of_show, $cc);     
    } 
} 

結果從數據庫：

ID EID  drive_folder drive_folder_name drive_folder_empty duncan robert mike james partners_name completed_form all_forms_in priority ask_for_review blog_status  bloggers_email todays_date  show_date 
20 2457 drive url  drive name   empty    Duncan Robert NULL NULL NULL   n    n    NULL  NULL   NULL   NULL   2017-04-24  2017-04-29 
21 2468 drive url  drive name   empty    NULL NULL Mike James NULL   n    n    NULL  NULL   NULL   NULL   2017-04-24  2017-04-29 

會發生什麼：

Array 
(
    [0] => robert email 
    [1] => duncan email 
) 
Array 
(
    [0] => robert email 
    [1] => duncan email 
    [2] => mike email 
    [3] => james email 
) 

我希望發生的

爲什麼保留在第二次運行以前的值？

Answer 1

試試這個，

$query = mysql_query("SELECT * FROM tasks WHERE DATE(`show_date`) = (  CURDATE() - INTERVAL 1 DAY) AND drive_folder_empty = 'empty' AND drive_folder IS NOT NULL;"); 
    while ($row = mysql_fetch_assoc($query)){ 
    $robert_email = $duncan_email = $mike_email = $james_email = $robert_phone = $duncan_phone = $mike_phone = $james_phone = ''; 
    if (!empty($row['robert'])){$robert_email = "robert email"; $robert_phone = "robert phone";} 
    if (!empty($row['duncan'])){$duncan_email = "duncan email"; $duncan_phone = "duncan phone";} 
    if (!empty($row['mike'])){$mike_email = "mike email"; $mike_phone = "mike phone";} 
    if (!empty($row['james'])){$james_email = "james email"; $james_phone = "james phone";} 


    $email_array = array($robert_email, $duncan_email, $mike_email, $james_email);    
    $filtered_email = array_filter($email_array); 

    print_r($filtered_email); 

    $mail_to = implode(', ', $filtered_email); 

    $phone_array = array($robert_phone, $duncan_phone, $mike_phone, $james_phone);    
    $filtered_phone = array_filter($phone_array);   
    $cc = implode(', ', $filtered_phone);   
    if (!empty($mail_to)) 
     sendEmail($mail_to, $drive_url, $date_of_show, $cc);     
    } 
} 

要回答你的問題，在這方面。您需要在使用這些變量之前重置循環中的變量。

Answer 2

您的問題是，您正在設置每個人的「電子郵件」變量中的值，但是您沒有將它們每次都設置爲空白。

但是，您不應該有條件地設置這些變量，您應該有條件地加載您的email_array和phone_array陣列，具體取決於它們的「名稱」列是否已填充到數據庫中。

像這樣的事情會是乾淨了一點：

$people = Array(
    'robert' => Array(
     'email' => 'robert email', 
     'phone' => 'robert phone' 
    ), 
    'duncan' => Array(
     'email' => 'duncan email', 
     'phone' => 'duncan phone' 
    ), 
    'mike' => Array(
     'email' => 'mike email', 
     'phone' => 'mike phone' 
    ), 
    'james' => Array(
     'email' => 'james email', 
     'phone' => 'james phone' 
    ) 
); 



while ($row = mysql_fetch_assoc($query)) { 

    // loop through each person and load up 
    // the arrays if the name col is not empty 
    foreach ($people as $name => $contact_info) { 
     if ($row[$name]) { 
      $email_array[] = $contact_info['email']; 
      $phone_array[] = $contact_info['phone']; 
     } 
    } 

    if (count($email_array) > 0) { 
     $mail_to = implode(', ', $email_array); 
     $cc = implode(', ', $phone_array); 

     sendEmail($mail_to, $drive_url, $date_of_show, $cc); 

     $email_array = Array(); 
     $phone_array = Array(); 
    } 
} 

通知你不需要過濾陣列，因爲他們總是包含正確的信息。