如何从html文本框中读取数据，并以与文本框相同的格式在php中打印（回显）数据？

问题描述：

I am beginner to PHP and here is my question. I have a text box and a 'Print' button. If 'Print' button is clicked, it should display the list of names entered in the text box. I'd written the following code, but the problem is, if I click the 'Print' button, it shows the names in a single line, instead of showing names in line by line format. Can someone help me in this. Thanks.

<!DOCTYPE html>
<html>
<head>
<title>Form Page</title>    
</head>
<body>

<form action="Files.php" method="get">
<textarea rows="15" cols="30" value="textbox" name="textbox"></textarea></br>
<input type="submit" value="Print" name="Print">
</form>

</body>
</html>

<?php
if(isset($_GET['Print'])){
    $file_print = $_GET["textbox"];
    echo $file_print;
}
?>

我是PHP的初学者，这是我的问题。我有一个文本框和一个“打印”按钮。如果单击“打印”按钮，则应显示在文本框中输入的名称列表。我写了下面的代码，但问题是，如果我点击“打印”按钮，它会在一行中显示名称，而不是逐行显示名称。有人可以帮助我吗？谢谢。 p>

 ＆lt;！DOCTYPE html＆gt; 
＆lt; html＆gt; 
＆lt; head＆gt; 
＆lt; title＆gt;表单页＆lt; / title＆gt;  
＆lt; / head＆gt; 
＆lt; body＆gt; 
 
＆lt; form action =“Files.php”method =“get”＆gt; 
＆lt; textarea rows =“15”cols =“30”value =“textbox”  name =“textbox”＆gt;＆lt; / textarea＆gt;＆lt; / br＆gt; 
＆lt; input type =“submit”value =“Print”name =“Print”＆gt; 
＆lt; / form＆gt; 
 
＆lt; /  body＆gt; 
＆lt; / html＆gt; 
 
＆lt;？php 
if（isset（$ _ GET ['Print']））{
 $ file_print = $ _GET [“textbox”]; 
 echo $ file_print; \  n} 
？＆gt; 
  code>  pre> 
  div>

答

You need to use nl2br() in PHP

Replace echo $file_print; with echo nl2br($file_print);

For edit..

echo nl2br($file_print);
file_put_contents('names.txt',$file_print,FILE_APPEND); //<-- Remove FILE_APPEND if you want to overwrite the file

答

Use nl2br()

nl2br — Inserts HTML line breaks before all newlines in a string.

So in your case, you need to do this echo nl2br($file_print);

如何从html文本框中读取数据，并以与文本框相同的格式在php中打印（回显）数据？

For edit..

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