PHP去除黑新線路

Question

我有這個PHP代碼

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

Text是可變的，由user.If text定義的

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

我希望它留樣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 

我該如何用PHP實現？

Answer 1

一個簡單的解決方案是使用preg_replace()。這將找到任何多行，並用一個單一的新行替換它們：

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

看到一個演示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函數這個

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

而且你在輸入，而不是輸出轉義的原因嗎？