On Mon, 2003-06-16 at 11:49, Thomas Bolioli wrote:
> I am a perl/java/c++ programmer who is doing something in php and have
> run accross something I am stumped with. I am trying to replace carriage
> returns with <br> or <p> tags (p's in groups of two and br's for any
> unmatched cr's). I have tried all of the *_replace() functions including
> string_*, ereg_* and preg_*. None have worked the way they seem to
> should. Note, I am a perl programmer and preg_replace() did not work
> while a test perl script did. I have tried multiple forms of patterns
> from "\r\n" to "\n" to "\r" to "/\r?\n/ei" (in the *reg_* functions). I
> even took code verbatim from examples in the docs to no avail. I have
> included the entire block of code (and mysql_dump output) since there is
> something I have apparently not done right and it may not be in the
> pattern matches.
> Thanks in advance,
> Tom
Hi Tom,
There's only one thing you didn't try...see below:
> *The offending code:*
>
> }elseif($_REQUEST['add']){
> $desc = $_REQUEST['description'];
> str_replace("\r\n\r\n", "<p>", $desc);
> str_replace("\r\n", "<br>", $desc);
You need to assign the result of the replacement to something before you
can use it; arguments are not modified in place. So something like this:
$desc = str_replace("\r\n\r\n", "<p>", $desc);
$desc = str_replace("\r\n", "<br>", $desc);
This change shouild be all you need. However, if you want to be able to
accept input from other than windows users, you can do the whole thing
with strtr(). I haven't tested with preg_replace(), but I suspect that
using regexps for this would be overkill.
$trans = array("\n\n" => '<p>',
"\n" => '<br />',
"\r\r" => '<p>',
"\r" => '<br />',
"\r\n\r\n" => '<p>',
"\r\n" => '<br />');
$desc = strtr($desc, $trans);
Hope this helps,
Torben
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