PHP去除黑新线路

Question

我有这个PHP代码

$Text=htmlspecialchars($_POST['new_post'],ENT_QUOTES); 
    $Text=trim($Text); 

Text是可变的，由user.If text定义的

There is a pleasure in the pathless woods, 
There is a rapture on the lonely shore, 
There is society, where none intrudes. 

我希望它留样that.But如果Text是

By the deep Sea, and music in its roar: 


I love not Man the less, but Nature more, 



From these our interviews, in which I steal 

我希望它是

By the deep Sea, and music in its roar: 
I love not Man the less, but Nature more, 
From these our interviews, in which I steal 

我该如何用PHP实现？

Answer 1

一个简单的解决方案是使用preg_replace()。这将找到任何多行，并用一个单一的新行替换它们：

$Text = preg_replace("/[\r\n]+/", "\n", $Text); 

看到一个演示here：

$Text = "There is a pleasure in the pathless woods, 


There is a rapture on the lonely shore, 


There is society, where none intrudes."; 


$Text=trim($Text); 
$Text=preg_replace("/[\r\n]+/", "\n", $Text); 

echo $Text; 

Answer 2

您可以使用str_replace函数这个

str_replace(array("\n", "\r"), '', $text); 

而且你在输入，而不是输出转义的原因吗？