％0D％0A在调用echo时不创建换行符

Question

Every time I try to echo a string there is no new line. I how can I make a newline when calling echo in php using the $_GET?

here is my code:

<?php
    $text = "Hello world";
    $text2 = $_GET['msg'];

    echo $text2
?>

and this is what I enter in the url:

http://localhost/hello.php?msg=hello%0Dworld

or this one:

http://localhost/hello.php?msg=hello%0Aworld

and even this one:

http://localhost/hello.php?msg=hello%0D%0Aworld

The echo has to be a newline please don't say I should use a different method than $_GET. It has to be $_GET

Answer 1

While performing your exercises you are creating an HTML page.

HTML is a special markup language, which renders according to set of rules, some of them are:

• <> characters has a special meaning of control structures named tags
• all newline characters are ignored
• to make a newline on the page, one have to use suitable tag - such as <br>, <p> or whatever.

So, to make a newline appear on your page, you have to convert newline characters to tags. Either use nl2br() function to get a <br /> tag or str_replace() if you want any other one