电子邮件中的 PHP 换行符
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PHP new line break in emails
提问by Michael
I have the following code:
我有以下代码：
$message = "Good news! The item# $item_number on which you placed a bid of $ $bid_price is now available for purchase at your bid price.\n
The seller, $bid_user is making this offer.\n
\nItem Title : $title\n
\nAll the best,\n
$bid_user\n
$email\n
";
echo $message;
$htmlContent = $baseClass->email_friend($item_number, $title, $bid_price, $bid_user, $mcat, $message, $email, $VIEWSTATE, $EVENTVALIDATION, $URL);
The problem is that the new line break(\n)is not working.
问题是新换行符(\n)不起作用。
回答by Brendan Bullen
Try \r\nin place of \n
尝试\r\n代替\n
The difference between \n and \r\n
It should be noted that this is applicable to line returns in emails. For other scenarios, please refer to rokjarc's answer.
应该注意的是，这适用于电子邮件中的行返回。其他场景请参考rokjarc的回答。
回答by Rok Jarc
I know this is an old question but anyway it might help someone.
我知道这是一个老问题，但无论如何它可能会对某人有所帮助。
I tend to use PHP_EOLfor this purposes (due to cross-platform compatibility).
我倾向于PHP_EOL用于此目的（由于跨平台兼容性）。
echo "line 1".PHP_EOL."line 2".PHP_EOL;
If you're planning to show the result in a browser then you have to use "<br>".
如果您打算在浏览器中显示结果，则必须使用"<br>".
EDIT:since your exact question is about emails, things are a bit different. For pure text emails see Brendan Bullen's accepted answer. For HTML emails you simply use HTML formatting.
编辑：由于您的确切问题是关于电子邮件，因此情况有所不同。对于纯文本电子邮件，请参阅 Brendan Bullen接受的答案。对于 HTML 电子邮件，您只需使用 HTML 格式。
回答by Harold1983-
Are you building this string using single or double quotes? \r and \n only work with double quotes, as well as embedded variables. For example:
您是使用单引号还是双引号构建此字符串？\r 和 \n 仅适用于双引号以及嵌入的变量。例如：
$foo = 'bar';
echo 'Hello \n $foo!';
will output:
将输出：
Hello \n $foo!
But:
但：
$foo = 'bar';
echo "Hello \n $foo!";
will output:
将输出：
Hello
bar!
回答by jeroen
If you output to html or an html e-mail you will need to use <br>or <br />instead of \n.
如果您输出到 html 或 html 电子邮件，则需要使用<br>或<br />代替\n.
If it's just a text e-mail: Are you perhaps using 'instead of "? Although then your values would not be inserted either...
如果它只是一个文本电子邮件：您是否可能使用'而不是"？虽然那样你的值也不会被插入......
回答by Amjad Abu Saa
you can use "Line1<br>Line2"
您可以使用 "Line1<br>Line2"
回答by Martin Vseticka
EDIT:Maybe your class for sending emails has an option for HTML emails and then you can use <br />
编辑：也许您发送电子邮件的课程有一个 HTML 电子邮件选项，然后您可以使用 <br />
1) Double-quotes
1)双引号
$output = "Good news! The item# $item_number on which you placed a bid of $ $bid_price is now available for purchase at your bid price.\nThe seller, $bid_user is making this offer.\n\nItem Title : $title\n\nAll the best,\n $bid_user\n$email\n";
If you use double-quotes then \n will work (there will be no newline in browser but see the source code in your browser - the \n characters will be replaced for newlines)
如果您使用双引号，则 \n 将起作用（浏览器中将没有换行符，但请参阅浏览器中的源代码 - \n 字符将被替换为换行符）
2) Single quotesdoesn't have the effect as the double-quotes above:
2）单引号没有上面双引号的效果：
$output = 'Good news! The item# $item_number on which you placed a bid of $ $bid_price is now available for purchase at your bid price.\nThe seller, $bid_user is making this offer.\n\nItem Title : $title\n\nAll the best,\n $bid_user\n$email\n';
all characters will be printed as is (even variables!)
所有字符都将按原样打印（甚至变量！）
3) Line breaks in HTML
3) HTML 中的换行符
$html_output = "Good news! The item# $item_number on which you placed a bid of <br />$ $bid_price is now available for purchase at your bid price.<br />The seller, $bid_user is making this offer.<br /><br />Item Title : $title<br /><br />All the best,<br /> $bid_user<br />$email<br />";
- There will be line breaks in your browser and variables will be replaced with their content.
- 浏览器中会有换行符，变量将被替换为它们的内容。
回答by m0g
if you are outputting the code as html - change /n -->
and do echo $message;
如果您将代码输出为 html - 更改 /n -->
并执行 echo $message;
回答by m0g
When we insert any line break with a programming language the char code for this is "\n". php does output that but html can't display that due to htmls line break is
. so easy way to do this job is replacing all the "\n" with "
". so the code should be
当我们用编程语言插入任何换行符时，其字符代码是“\n”。php 确实输出，但由于 htmls 换行符，html 无法显示
。完成这项工作的简单方法是将所有“\n”替换为“
”。所以代码应该是
str_replace("\n","<br/>",$str);
after adding this code you wont have to use pre tag for all the output oparation.
添加此代码后，您不必为所有输出操作使用 pre 标记。
