PHP - 拆分包含换行符的字符串并打印

Question

为什么下面的代码不起作用...？

$test = "hello \n world \n !";
foreach(explode("\n",$test) as $line){
echo $line;
}

打印

hello world !

代替

hello 
world
!

谢谢

Answer 1

你还必须回应 <br />

The HTML <br /> element produces a line break in text (carriage-return). It is useful for writing a poem or an address, where the division of lines is significant.

$test = "hello \n world \n !";
foreach(explode("\n",$test) as $line){
    echo $line;
    echo "<br />";
}

文档: <br />

---

另一种选择是使用 nl2br在字符串中的所有换行符之前插入 HTML 换行符

$test = "hello \n world \n !";
echo nl2br($test);

文档:nl2br()