Solved

issue with \n\r and nl2br

Posted on 2011-02-24
8
462 Views
Last Modified: 2012-05-11
I'm passing a variable in my URL
index.php?p=this\r\ntext

using $_GET[var] I'm getting this\\r\\ntext

why is \r\n being modified to \\r\\n

nl2br() won't work in my variable

replace_sub("\\r\\n","<br/>", $var) doesn't work either ?

can you help?
0
Comment
Question by:joomla
  • 3
  • 2
  • 2
  • +1
8 Comments
 
LVL 35

Expert Comment

by:gr8gonzo
ID: 34975333
Try:
$var = str_replace("\\\\r\\\\n","<br/>",$var);
0
 

Author Comment

by:joomla
ID: 34976328

this is how far I seem to get
index.php?p=separate\r\nlines

$var=$_GET[var];

what $var gets is "\\r\\n"   (don't understand why the change.   as I inputed "\r\n")

$unwanted=array("\r","\n","\r\n","\\r\\n","\\r\\n");
$wanted="<br/>";
$var= str_replace($unwanted,$wanted,$var);

results in $var = separate<br/>lines

when I put this in the text area it shows
separate<br/>lines

I wanted it to show
separate
lines

thanks for any help


0
 
LVL 35

Expert Comment

by:gr8gonzo
ID: 34976718
If you want it on separate lines in a text area, you don't need to use <br/> - text areas pay attention to line breaks. Just change $wanted = "\r\n"; and you should see what you're looking for.

The problem is that by default, PHP tries to automatically escape special characters that are entered via the query string. It's a security thing, which you can turn off, but  that's not recommmended. It's better to simply fix any specific cases like this.
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:joomla
ID: 34976734
Hi gr8gonzo:
thanks for feedback
unfortunately your suggested didn't work
regards
M
0
 
LVL 35

Expert Comment

by:gr8gonzo
ID: 34976741
What does your code look like right now?
0
 
LVL 27

Accepted Solution

by:
Lukasz Chmielewski earned 125 total points
ID: 34977428
Step by step. Does this work:


<?php
$var=$_GET[p];

//what $var gets is "\\r\\n"   (don't understand why the change.   as I inputed "\r\n")

$unwanted="\\\\n";
$wanted="\n";
$var= str_replace($unwanted,$wanted,$var); 

$unwanted="\\\\r";
$wanted="\r";
$var= str_replace($unwanted,$wanted,$var); 

?>
<textarea><?php echo"$var";?></textarea>

Open in new window

0
 
LVL 5

Expert Comment

by:onemadeye
ID: 34992480
This is simple codes and should be working ...
NOTICE the way I use single quotes and double quotes in str_replace
$var = $_GET['p'];
$var = stripslashes($var);
// Turning \r\n to breakspace in textarea
echo '<textarea>'.str_replace('\r\n', "\r\n", $var).'</textarea>';

Open in new window


Regards...
0
 
LVL 5

Expert Comment

by:onemadeye
ID: 34992504
And here's for the learning purposes (for those who wonder) :-)
<?php

// \r\n on single quotes
$var1 = 'NO break \r\n space';
// \r\n on double quotes
$var2 = "YES break \r\n space";

// echo $var1 in TEXTAREA
echo 'Var#1: <textarea>'.$var1.'</textarea>';
// echo $var2 in TEXTAREA
echo 'Var#2: <textarea>'.$var2.'</textarea>';

?>

Open in new window

0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Popularity Can Be Measured Sometimes we deal with questions of popularity, and we need a way to collect opinions from our clients.  This article shows a simple teaching example of how we might elect a favorite color by letting our clients vote for …
Introduction This article is intended for those who are new to PHP error handling (https://www.experts-exchange.com/articles/11769/And-by-the-way-I-am-New-to-PHP.html).  It addresses one of the most common problems that plague beginning PHP develop…
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
The viewer will learn how to count occurrences of each item in an array.

685 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question