将日期+时间插入电子邮件的主题

Question

如何在主题开头插入日期和时间，例如

代码中的日期（'d-m-Y h：m：s'）不起作用并返回此错误：解析错误：语法错误，意外T_STRING

<?php
    mail('joe@example.com', '"date('d-m-Y h:m:s')" Daily Backup: example.com', 'Download your daily backup from this link: http://example.com/backups/backup.zip');
?>

此代码有效:(没有日期和时间）

<?php
    mail('joe@example.com', 'Daily Backup: example.com', 'Download your daily backup from this link: http://example.com/backups/backup.zip');
?>

感谢您的帮助！

Answer 1

您错过了将您的php代码封装在字符串中：

mail('joe@example.com', '"'.date('d-m-Y h:m:s').'" Daily Backup: example.com', 'Download your daily backup from this link: http://example.com/backups/backup.zip');

Answer 2

它看起来像语法错误。尝试在开始字符串之前放置日期函数，使其变为

<?php
    mail('joe@example.com', date('d-m-Y h:m:s').' Daily Backup: example.com', 'Download your daily backup from this link: http://example.com/backups/backup.zip');
?>