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How do you use PHP to str_replace a line break

Posted on 2004-09-13
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Last Modified: 2008-02-26
What is a good way to replace a line break using php?
I am using a php web form that will read from an xml document but the data is really stored in a mysql db.

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Question by:Kag01
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8 Comments
 
LVL 13

Expert Comment

by:cLFlaVA
ID: 12043805
Replace it with what?

The nl2br() function will replace the new line character with "<br>", so the new line displays as a new line in HTML.
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Expert Comment

by:Daij-Djan
ID: 12044203
other way round = str_replace all "<br/>" with "\n"
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LVL 2

Expert Comment

by:ShockwaveRK
ID: 12044873
Depends on what you want to do with the linebreak

if you want to replace it see the answers above

if you just wnat to get rid of use trim

$new_Var = trim ( $line_with_break);

--
greetz,
Robert
The Netherlands.
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LVL 1

Expert Comment

by:kroplis
ID: 12048870
yeah, but trim only strips whitespaces from the sides
and also str_replace with "\n" might miss carriage returns - "\r"
i would advice using

$string = str_replace($string, "\r\n", $replacement);
$string = str_replace($string, "\n", $replacement);
$string = str_replace($string, "\r", $replacement);

it makes it more portable, as Mac uses "\r" for newline, *NIX systems use "\n" and windows uses "\r\n" for newline.
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LVL 4

Expert Comment

by:Skonen
ID: 12051084
$strReplacement = "replacement";
$aBreaks= Array("\r\n", '\n', '\r');

$string = str_replace($string, $aBreaks, $strReplacement);
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Expert Comment

by:Daij-Djan
ID: 12053821
nl2br is for that kroplis
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Accepted Solution

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kroplis earned 125 total points
ID: 12054096
nl2br() does NOT replace "\r".
otherwise, it wouldn't have spawned as many comments on it:
http://php.grafton.lv/manual/en/function.nl2br.php

for example - $s_data = ereg_replace("(\r\n|\n|\r)", "<br />", $s_data);
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