Get Summary From a Long Paragraph

Nov 7, 2008 | Tags: PHP | del.icio.us del.icio.us | digg Digg

If you have recent news you want to display in your homepage, you might want to display only the summaries--a short paragraph with only 20-25 words. The simplest way to do this is get the first 20-25 words from your articles. At the end of the summary, and a link with some text like 'read more', 'continue reading' or something like that.

Listing 1: listing-1.php

  1. <?php
  2. function get_summary($text, $wordnum = 20)
  3. {
  4.     /* count multiple spaces as one space */
  5.     $text  = preg_replace("/ +/", " ", $text);
  6.     $pos   = 0;
  7.     $count = 0;
  8.    
  9.     while(($pos = strpos($text, ' ', $pos+1)) !== false) {
  10.         if (++$count >= $wordnum) {
  11.             break;
  12.         }
  13.     }
  14.    
  15.     $summary = substr($text, 0, $pos);
  16.     return($summary);
  17. }
  18.  
  19. $text = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec "
  20.       . "libero. Suspendisse bibendum. Cras id urna. Morbi tincidunt, orci "
  21.       . "ac convallis aliquam, lectus turpis varius lorem, eu posuere nunc "
  22.       . "justo tempus leo.";
  23.  
  24. $sum = get_summary($text);
  25. print $sum;
  26.  
  27. /* will print:
  28. Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec libero.
  29. Suspendisse bibendum. Cras id urna. Morbi tincidunt, orci ac convallis
  30. */

1 Comment

Amit Cohen on Dec 14, 2008:

Hi You forgot the closing tag ?> Cheers Amit.

Leave a comment

Name (required)
Email (will not be published) (required)
Website

Characters left = 1000

Tags

Correlation  HTTP  Image  Networking  OpenCV  PHP  Projects  Regex  SEO  Security  WebService  opencv 

Recent Posts

  1. What Do You Expect from a Quick OpenCV Guide?
  2. OpenCV Utility: Reading Image Pixels Value
  3. OpenCV Circular ROI
  4. OpenCV 2.0 Installation on Windows XP and Visual Studio 2008
  5. Runtime ROI Selection using Mouse
View Archives

About the Author

avatar Cool PHP programmer writing cool PHP scripts. Feel free to contact
ICQ 489571630
Skype dede_bl4ckheart
Yahoo dede_bl4ckheart
Google   nashruddin.amin

Recommended Sites:

OpenCV Code Examples
HTML and CSS Tutorials
Stop Dreaming Start Action
Online Quran and Translation