Extract a number of words from text

View unanswered posts | View active topics

Board index » Programming » Code Snippets

All times are UTC - 5 hours

Moderator: General Moderators

Page 1 of 1

[ 5 posts ]

Previous topic | Next topic

Author

Message

CoursesWeb

Post subject: Extract a number of words from text

Posted: Mon Dec 09, 2013 12:10 pm

Forum Newbie

Joined: Mon Dec 09, 2013 11:52 am
Posts: 18

Hi
This is m 1st post on this forum, and i want to begin with something useful to contribute.
Here is a small php code that can be used to extract a number of words from text.

Code:

$text = 'Extract the text with first 45 characters from this string.';
$nrw = 10;                         // the number of words we want to extract

$rgxwords = '/([^ ]*[ ]{0,1}){1,'.$nrw.'}/i';            // patern to get a number of words from string
$text = preg_replace('/\s\s+/', ' ', $text);             // replace multiple whitespaces whith single space
$text = trim($text);                                     // to remove whitespace from the beginning and ending

// get the substring
if(preg_match($rgxwords, $text, $mtc)) $txt = $mtc[0];
else $txt = '';

echo $txt;
 

Last edited by requinix on Mon Dec 09, 2013 1:54 pm, edited 1 time in total.

removing advertising

Top

Weirdan

Post subject: Re: Extract a number of words from text

Posted: Mon Dec 09, 2013 6:16 pm

Moderator

Joined: Mon Nov 03, 2003 7:13 pm
Posts: 5978
Location: Odessa, Ukraine

Syntax: [ Download ] [ Hide ]

$text = 'Extract the text with first 45 characters from this string.';

$nrw = 6;

echo join(" ", array_slice(str_word_count($text, 1, '0..9'), 0, $nrw));

Top

CoursesWeb

Post subject: Re: Extract a number of words from text

Posted: Tue Dec 10, 2013 1:47 am

Forum Newbie

Joined: Mon Dec 09, 2013 11:52 am
Posts: 18

But if you have comma, dot or other punctuations in text, using array_slice() will lose the punctuations.

Top

Weirdan

Post subject: Re: Extract a number of words from text

Posted: Tue Dec 10, 2013 1:56 am

Moderator

Joined: Mon Nov 03, 2003 7:13 pm
Posts: 5978
Location: Odessa, Ukraine

It depends on what is actually needed. As the title goes, punctuation does not belong to 'words'

Top

CoursesWeb

Post subject: Re: Extract a number of words from text

Posted: Wed Dec 11, 2013 4:10 am

Forum Newbie

Joined: Mon Dec 09, 2013 11:52 am
Posts: 18

Yes, You are right. I wrote that code to get the "n" first words from a text, that to add a Read more ..
In this usage is needed to keep the punctuations, and also not break words.

Top

Page 1 of 1

[ 5 posts ]

Board index » Programming » Code Snippets

All times are UTC - 5 hours

Who is online

Users browsing this forum: No registered users and 2 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to: