phpmailer 列循环和跳过 NULL

Posted 2023-02-24

【中文标题】phpmailer 列循环和跳过 NULL

【英文标题】：phpmailer column loop & skip NULLs

【发布时间】：2011-09-05 19:49:46

【问题描述】：

我正在尝试连续遍历 5 列以使用 phpmailer 发送电子邮件。每行最多可以包含 5 个电子邮件地址，但并非全部都包含。我的循环方法有效，但如果在没有可用电子邮件地址的情况下存在 NULL，则不会发送电子邮件。如何让我的脚本忽略 NULL。另外，Columns有没有更好的循环流程？

包括（“conn.php”）； 要求（“class.phpmailer.php”）； // 需要("class.smtp.php"); // 需要("class.pop3.php"); $conn = mssql_connect($server, $user, $pass) or die("

ERROR: Connection to MYSERVER failed

"); $select = mssql_select_db($database, $conn) or die("

错误：选择数据库失败

"); $sql1 = "选择 Email1 作为 email1，Email2 作为 email2，Email3 作为 email3，Email4 作为 email4，Email5 作为 email5 FROM $table2 where IPaddress='000.000.000.000'"; $result1 = mssql_query($sql1); 而 ($row1 = mssql_fetch_assoc($result1)) $EmailADD1 = $row1["email1"]; $EmailADD2 = $row1["email2"]; $EmailADD3 = $row1["email3"]; $EmailADD4 = $row1["email4"]; $EmailADD5 = $row1["email5"]; //error_reporting(E_ALL); 错误报告（E_STRICT）； ini_set('log_errors', '开'); ini_set('display_errors', '开'); date_default_timezone_set('美国/多伦多'); //include ("class.phpmailer.php"); //include("class.smtp.php"); $mail = 新 PHPMailer(); $mail->SetLanguage('en', 'C:\PHP\mail\language\\'); $mail->IsSMTP(); // 设置邮件程序使用 SMTP $mail->Host = "[e-mail]"; // 指定主备服务器 $mail->端口 = 25; // 设置 SMTP 端口 $mail->SMTPAuth = 真； // 开启 SMTP 认证 $mail->用户名 = "我"; // SMTP 用户名 $mail->密码 = "xxxxx"; // SMTP 密码 $mail->发件人 = "[e-mail]"; $mail->FromName = "Mailer"; //$body = $mail->getFile('contents.html'); //$body = eregi_replace("[\]", '', $body); $mail->AddReplyTo("[e-mail]", "JT"); $mail->发件人 = "[e-mail]"; //$mail->AddAddress("[e-mail]", "JohnTest"); $mail->FromName = "我"; $mail->Subject = "PHPMailer 测试"; $mail->Body = "嗨，这是 HTML 正文$IP"; //HTML正文 $mail->WordWrap = 50; // 设置自动换行 $mail->AddAddress($EmailADD1, "IPscoreBounceInfo1"); $mail->AddAddress($EmailADD2, "IPscoreBounceInfo2"); $mail->AddAddress($EmailADD3, "IPscoreBounceInfo3"); $mail->AddAddress($EmailADD4, "IPscoreBounceInfo4"); $mail->AddAddress($EmailADD5, "IPscoreBounceInfo5"); ...

【参考方案1】：

您可以通过从服务器中消除 mysql 查询中的 NULL 来解决此问题。试试这个 MySQL 查询，它应该消除 NULL：

SELECT * FROM (
SELECT Email1 as email FROM $table2 where IPaddress='000.000.000.000'
UNION
SELECT Email2 as email FROM $table2 where IPaddress='000.000.000.000'
UNION
SELECT Email3 as email FROM $table2 where IPaddress='000.000.000.000'
UNION
SELECT Email4 as email FROM $table2 where IPaddress='000.000.000.000'
UNION
SELECT Email5 as email FROM $table2 where IPaddress='000.000.000.000'
) WHERE email IS NOT NULL

【讨论】：

感谢landoncz，这行得通……稍作修改。 SELECT Email1 as email FROM IPreputation where IPaddress='000.000.000.000' and Email1 IS NOT NULL UNION SELECT Email2 as email FROM IPreputation where IPaddress='000.000.000.000' and Email2 IS NOT NULL UNION SELECT Email3 as email FROM IPreputation where IPaddress=' 000.000.000.000' and Email3 IS NOT NULL UNION SELECT Email4 as email FROM IPreputation where IPaddress='000.000.000.000' and Email4 IS NOT NULL UNION SELECT Email5 as email FROM IPreputation where IPaddress='000.000.000.000' and Email5 IS NOT NULL