printf中的换行符（\ n）不起作用？ [英] Newline (\n) in printf doesn't work?
问题描述
我是PHP的新手。
我看到PHP支持C printf函数，我看过例子
就像printf一样（Hello world！\ n）;但是换行符\\ n \\ n \\ n
无法正常工作 - 也就是说，它不会生成HTML< br> ;,我会b / b
预期 - 它是什么确实是在html
生成的文本中生成换行符，但由于浏览器忽略了空行，因此对于大多数应用程序来说，这个
功能似乎没用。
>从此产生了两个问题：
1.我误解了什么？
2.将换行符插入PHP
字符串的规定方法是什么？ （可能是printf（Hello world！< br>）？
谢谢，
M. McDonnell
Michael写道：
我是PHP新手。
我看到PHP支持C printf函数，我看过像
喜欢printf（Hello world！\ n）;但是换行了字符\ n
不起作用 - 也就是说，它不会生成一个HTML< br>，我会b
预期 - 它的作用是生成html
生成文本中的换行符，但由于浏览器忽略空白行，因此对于大多数应用程序来说，这个
功能似乎没用。
>>由此产生了两个问题：
1.我误解了什么？
2.将换行符插入PHP
字符串的规定方法是什么？ （可能是printf（Hello world！） < br>"）？
谢谢，
M. McDonnell
它工作良好。它会生成一个nl字符，就像你要求的那样。
看看你的源代码 - 你会看到换行符。
如果你想要一个HTML< bror xthtml< br />，你需要自己编码
。 PHP不能为您转换。
-
==================
删除x来自我的电子邮件地址
Jerry Stuckle
JDS计算机培训公司
js ******* @ attglobal.net
==================
5月27日晚上8:05，Jerry Stuckle< jstuck ... @ attglobal.netwrote：
Michael写道：
我是PHP的新手。
我看到PHP支持C printf函数，我看过例如
就像printf（"你好世界！\ n"）;但是换行符\\ n \\ n \\ n
无法正常工作 - 也就是说，它不会生成HTML< br> ;,我会b / b
预期 - 它是什么确实是在html
生成的文本中生成换行符，但由于浏览器忽略空白行，因此对于大多数应用程序来说，这个
功能似乎没用。
>由此产生两个问题：
1.我误解了什么？
2.将换行符插入PHP
字符串的规定方法是什么？ （可能是printf（Hello world！< br>）？
谢谢，
M 。麦克唐纳
它工作正常。它会生成一个nl字符，就像你要求的那样。
看看你的源代码 - 你我会看到换行符。
如果你想要一个HTML< bror xthtml< br />，你需要对它们进行编码
你自己.PHP不会为你转换。
-
==================
从我的电子邮件地址中删除x
Jerry Stuckle
JDS计算机培训公司
jstuck .. 。@ attglobal.net
================== - 隐藏引用的文字 -
- 显示引用文本 -
Jerry，
感谢您的回复。是的，我查看了源代码，但没有< ; br>，
所有我得到的是一个新的空白行，我们知道它被浏览器忽略了。
" Michael" < Mi *************** @ yahoo.com在留言中写道
新闻：11 *************** *******@j4g2000prf.googlegro ups.com ...
我是PHP新手。
我看到PHP支持C printf函数，我看过例如
就像printf（Hello world！\ n）;但是换行符\\ n \\ n \\ n
无法正常工作 - 也就是说，它不会生成HTML< br> ;,我会b / b
预期 - 它是什么确实是在html
生成的文本中生成换行符，但由于浏览器忽略了空行，因此对于大多数应用程序来说，这个
功能似乎没用。
>>由此产生两个问题：
1.我误解了什么？
2.将换行符插入PHP
字符串的规定方法是什么？ （可能是printf（Hello world！< br>）？
是。
更多正确
printf（Hello world！< br> \\\\ n）;
所以你得到一条线打破源HTML，让你更容易阅读
.
或者，因为你实际上没有格式化任何东西：
print（" Hello world！< br> \\\\ n"）;
甚至
echoHello world！< br> \\ n \\ n;;
-
Richard。
I''m new to PHP.
I see that PHP supports the C printf function, and I''ve seen examples
like printf("Hello world!\n"); however the newline character \n
doesn''t work - i.e., it does not generate an HTML <br>, which I would
have expected - what it does is generate a newline in the html
generated text, but since the browser ignores blank lines, this
feature appears useless for most applications.
>From this arises two questions:
1. I am misunderstanding something?
2. What is the prescribed way of inserting a newline into a PHP
string? (Could it be printf("Hello world! <br>") ?
Thanks,
M. McDonnell
Michael wrote:I''m new to PHP.
I see that PHP supports the C printf function, and I''ve seen examples
like printf("Hello world!\n"); however the newline character \n
doesn''t work - i.e., it does not generate an HTML <br>, which I would
have expected - what it does is generate a newline in the html
generated text, but since the browser ignores blank lines, this
feature appears useless for most applications.
>>From this arises two questions:
1. I am misunderstanding something?
2. What is the prescribed way of inserting a newline into a PHP
string? (Could it be printf("Hello world! <br>") ?
Thanks,
M. McDonnell
It works fine. It generates a nl character, just as you asked it to.
Look at your source code - you''ll see the line break.
If you want an HTML <bror xthtml <br />, you need to code them
yourself. PHP does not convert for you.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================
On May 27, 8:05 pm, Jerry Stuckle <jstuck...@attglobal.netwrote:Michael wrote:I''m new to PHP.
I see that PHP supports the C printf function, and I''ve seen examples
like printf("Hello world!\n"); however the newline character \n
doesn''t work - i.e., it does not generate an HTML <br>, which I would
have expected - what it does is generate a newline in the html
generated text, but since the browser ignores blank lines, this
feature appears useless for most applications.
>From this arises two questions:
1. I am misunderstanding something?
2. What is the prescribed way of inserting a newline into a PHP
string? (Could it be printf("Hello world! <br>") ?
Thanks,
M. McDonnell
It works fine. It generates a nl character, just as you asked it to.
Look at your source code - you''ll see the line break.
If you want an HTML <bror xthtml <br />, you need to code them
yourself. PHP does not convert for you.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstuck...@attglobal.net
==================- Hide quoted text -
- Show quoted text -Jerry,
Thanks for your reply. Yes, I looked at the source code, but no <br>,
all I get is a new line of white space, which as we know is ignored by
the browser.
"Michael" <Mi***************@yahoo.comwrote in message
news:11**********************@j4g2000prf.googlegro ups.com...I''m new to PHP.
I see that PHP supports the C printf function, and I''ve seen examples
like printf("Hello world!\n"); however the newline character \n
doesn''t work - i.e., it does not generate an HTML <br>, which I would
have expected - what it does is generate a newline in the html
generated text, but since the browser ignores blank lines, this
feature appears useless for most applications.
>>From this arises two questions:
1. I am misunderstanding something?
2. What is the prescribed way of inserting a newline into a PHP
string? (Could it be printf("Hello world! <br>") ?Yes.
More properly
printf("Hello world! <br>\r\n");
so you get a line break in the source HTML as well, making it easier to
read.
or, since you are not actually formatting anything:
print("Hello world! <br>\r\n");
or even
echo "Hello world! <br>\r\n";
--
Richard.
这篇关于printf中的换行符（\ n）不起作用？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
