CODEWITHSUNDEEP
phppostline-breaks
darx
darx

Reputation: 1657

PHP removes line breaks when using POST

I have form that uses POST to send information to PHP script. PHP reads $content and saves it to file.txt, and also displays it on browser using the following code:

$content = $_POST['content'];

file_put_contents("file.txt", $content);
echo $content;

If I use line breaks in form, then file.txt contains them all. But when I'm echoing same $content to browser, there are no line breaks at all. And I mean in source code. My purpose is to use $content in another forms <textarea>, but even textarea does not show any line breaks.

How file_put_contents finds the line breaks?

Upvotes: 2

Views: 1744

Answers (4)

darx
darx

Reputation: 1657

Ok, thanks to Skye, the problem is solved. I used javascript generated <input> tag to send text containing line breaks. I changed it to <textarea> and I can catch all the line breaks now.

I can't still understand why I can have line breaks when saving to file.txt from <input>...

Upvotes: 0

orbit
orbit

Reputation: 39

Try this:

$content = $_POST['content'];

file_put_contents("file.txt", $content);
echo "<pre>";
echo $content;
echo "</pre>";

Upvotes: 0

Koala Yeung
Koala Yeung

Reputation: 7843

I think the line breaks are not gone. They are just not visible with Notepad or Windows based editor.

Most browsers use Unix / MacOS line break (\n) only, while Windows editor only recognize Windows linebreak (\r\n).

Instead of

$content = $_POST['content'];

Try to do

$content = str_replace("\n", "\r\n", $_POST['content']);

More reference:

Difference between CR LF, LF and CR line break types?

Upvotes: 0

Anish
Anish

Reputation: 195

Use php function nl2br() when displaying content to browser.

<?php echo nl2br($content); ?>

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

http://php.net/manual/en/function.nl2br.php

Upvotes: 2

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