How to remove "carriage return" entries in a string 1

[ChrisMacPherson]

Hi All,

For my next problem,

I need to strip all carriage return occurences from a string. I cant seem to find a specific method to do this, and I dont know what characters to strip if I'm just going to remove the characters using a normal string method.

Any ideas?

Thanks for any help. Chris MacPherson
macpweb@hotmail.com

http://www.macpweb.org

Bring on the new Browza's!!

 

[vcherubini]

Well, what type of returns are they? \n or \r?

You could use several functions.

Since you are programming in PHP, and will most likely output this to a browser, you can use the nl2br() function to convert all new lines to a [tt]<br>[/tt] tag.

Or you could do a simple regular expression:

[tt]
$string = eregi_replace(&quot;\r&quot;,&quot;&quot;,$string);
$string = eregi_replace(&quot;\n&quot;,&quot;&quot;,$string);
[/tt]

Hope this helps.

-Vic

vic cherubini
krs-one@cnunited.com

http://www.cnunited.com

====
Knows: Perl, HTML, JavScript, C/C++, PHP, Flash
====

 

[Sparhawk2]

First let me apologize to vcherubini fpr this cotradiction.

'you can use the nl2br() function to convert all new lines to a <br> tag.'

nl2br() does not convert the newline characters, it merely places a <BR> before each newline character in the string. The newline characters remain in the string.


He has shown you how to replace them with eregi_replace. Another option you may consider is addcslashes().

It won't remove them, but it will delimit the characters so that it is safe to write to a flat file or what have you.

addcslashes ($not_escaped, &quot;\0..\37&quot

I believe that is the correct sytax. This will delimit any characters with an ASCI value in the range 0 to 37. That should catch newline and carriage returns.

 

[ChrisMacPherson]

Thanks for the help,

In response to Vic, I am not sure which it is:

>> &quot;Well, what type of returns are they? \n or \r?&quot;

Are they for windows and Unix, or are they both different types of Windows/Dos carriage returns?

I dont use Unix at all, so I have no idea about that side of it at all. It would be interesting to know though as I keep reading about being carefull about the different characters used by the two systems.

I'll try the code and tell you how it went

Thanks again Chris MacPherson
macpweb@hotmail.com

http://www.macpweb.org

Bring on the new Browza's!!

 

[csbdeady]

Hi there

I've tried both the regular expression and addcslashes methods shown above to get rid of a carriage return and a linefeed in a string.

However when I do the following in a table:

echo &quot;<tr><td><textarea name=\&quot;moddloadtop\&quot; cols=40 rows=4>&quot;.$modtop.&quot;</textarea><br><br></td></tr>&quot;;

I find that instead of getting just the text output by $modtop I also get the carriage return and linefeed.

It's not the problem of the <textarea> tag as <textarea>sometext</textarea> shows no CR or LF.

I've tried:

$modtop = eregi_replace(&quot;\r&quot;,&quot;&quot;,$modtop);
$modtop = eregi_replace(&quot;\n&quot;,&quot;&quot;,$modtop);

and

addcslashes ($modtop, &quot;\0..\37&quot

and

$modtop = eregi_replace(chr(10),&quot;&quot;,$modtop);
$modtop = eregi_replace(chr(13),&quot;&quot;,$modtop);

but none get rid of the CR and LF in the textarea.

Any thoughts would be great!

 

[danielhozac]

You could try this, though I don't think it would make a difference:

$modtop = str_replace("\n", "", str_replace("\r", "", $modtop));

My guess is that there is something else that has the CR LF, maybe the browser automatically appends it for some reason.
Also, what does $modtop contain? //Daniel

 

[csbdeady]

I've checked - the browser doesn't append it as

<textarea>something</textarea>

doesn't have the CF + LF but

echo &quot;<textarea>&quot;.$modtop.&quot;</textarea>&quot;;

does.

The weird thing is that if I do:

$modtop = eregi_replace(&quot;\r&quot;,&quot;R&quot;,$modtop);
$modtop = eregi_replace(&quot;\n&quot;,&quot;N&quot;,$modtop);

I get the text string in $modtop then a CR then &quot;N&quot;:

sometext
N

Clearly the \n is being replaced ok but the \r isn't.

Please keep the thoughts coming on this one

Thanks muchly!

 

[sleipnir214]

How about:

[tt]

$foo = preg_replace ('/\r|\n/', '', $bar);

[/tt]

or perhaps a little more correctly would be to replace any of &quot;\r\n&quot;, &quot;\r&quot;, or &quot;\n&quot; with a single space:

[tt]

$foo = preg_replace ('/\r\n|\r|\n/', ' ', $bar);

[/tt]
______________________________________________________________________
TANSTAAFL!

 

[csbdeady]

spot on! Marvellous

Many thanks sleipnir214 et al!