Would this work?
<?
function trunc($string, $limit = 11)
{
$arr = array();
$arr = (preg_split('/\s/', preg_replace('/(\s)\s+/',
'\\1',$string)));
return implode(' ', array_slice($arr, 0, $limit));
}
$str = "This is my\n\r\n\ntest string\nIsn't it nice?\r\nI quite like
it\n\nHow about you?";
echo trunk($str);
?>
This returns:
This is my test string Isn't it nice? I quite like
Of course, the return doesn't preserve line breaks :)
HTH
Dan
--------
http://chrome.me.uk
-----Original Message-----
From: Richard Lynch [mailto:ceo@xxxxxxxxx]
Sent: 03 February 2006 21:45
To: Verdon Vaillancourt
Cc: ceo@xxxxxxxxx; John Meyer; PHP eMail List
Subject: Re: Truncate words in multiple paragraphs
Just do this:
$string = str_replace("\n", "<br>", $string);
$string = trim_text($string);
$string = str_replace("<br>", "\n", $string);
Actually <br> could be any sequence of non-whitespace characters
unlikely to be in the text in the first place.
On Fri, February 3, 2006 3:29 pm, Verdon Vaillancourt wrote:
> Hi Richard,
>
> I quickly realized this and fooled with a few variations. Also have to
> take into account that the <br> or the <br /> get counted as 1 or 2
> words respectively, and so the trim can end up in the wrong place.
> I've
> tried fiddling with counting the number of br's in the string and
> adding that to the truncation limit before the preg_split, but this is
> still not ideal.
>
> I'm going to have a look at your other suggestion too.
>
> Thanks for your thoughts :)
> verdon
>
> On 3-Feb-06, at 4:21 PM, Richard Lynch wrote:
>
>>
>>
>> This would work if you replace the <br /> with <br> -- Otherwise,
>> it's
>> too likely to break up "<br />" in the trim_text function and then
>> you
>> end up with:
>>
>> "start of string ... almost 255 words, blah blah blah<br"
>>
>> On Fri, February 3, 2006 11:25 am, John Meyer wrote:
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> Verdon Vaillancourt wrote:
>>>> Hi :)
>>>>
>>>> I am using the following function (that I found in the user
>>>> comments
>>>> on
>>>> php.net manual) for trimming the number of words accepted via a
>>>> form
>>>> field
>>>>
>>>> // Truncation is by word limit, not character limit. So if you
>>>> limit
>>>> // to 255, then it will cut off a text item to 255 words, not 255
>>>> characters
>>>> function trim_text ($string, $truncation=250) {
>>>> $string = preg_split("/\s+/",$string,($truncation+1));
>>>> unset($string[(sizeof($string)-1)]);
>>>> return implode(' ',$string);
>>>> }
>>>
>>>
>>> How about
>>> $string = nl2br($string);
>>> $string = trim_text($string);
>>> $string = str_replace("<br />","\n",$string);
>>> -----BEGIN PGP SIGNATURE-----
>>> Version: GnuPG v1.4.2 (GNU/Linux)
>>> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
>>>
>>> iD8DBQFD45Hzj60GAoLuoDkRAjSqAKCxvGlJmSCVHozWBDjjZnKMEZOfSwCfenVj
>>> lRSChtsMRqRnOYdZpk5YQ0c=
>>> =Dnly
>>> -----END PGP SIGNATURE-----
>>>
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>>>
>>>
>>
>>
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>>
>>
>>
>>
>
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