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Return a certain number of words of a string?

Discussion in 'PHP' started by LongHaul, Oct 10, 2006.

  1. #1
    I have a long string which is actually a paragraph.

    Can I have php only include the first X number of full words from the string?
    SEMrush
    Ideally, I'd like to include the number of words closest to, say, the 80-character point. How could I search for a space near that point?

    I know I can *count* words, but is there a way to have a substring of X many words?

    Thanks!

    Example:
    $paragraph = "This is my dummy paragraph that includes no important facts and in fact I am making it all up off the top of my head. I trust it was enjoyed by all."

    My web site displays:
    "This is my dummy paragraph that includes no important facts and"

    But $paragraph changes depending on the page, so I can't just lop it off at a certain number of characters.
     
    LongHaul, Oct 10, 2006 IP
    SEMrush
  2. exam

    exam Peon

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    #2
    function substr_words ($paragraph, $num_words) {
      $paragraph = explode (' ', $paragraph);
      $paragraph = array_slice ($paragraph, 0, $num_words);
      return implode (' ', $paragraph);
    }
    PHP:
    Or, maybe something like this would suit your needs better.
    function cut_paragraph ($paragraph, $limit=80) {
      $pos = strrpos ($paragraph, ' ', $limit);
      if (false !== $pos) {
        return substr ($paragraph, 0, $pos);
      }
      return $paragraph;
    }
    PHP:
     
    exam, Oct 10, 2006 IP
  3. T0PS3O

    T0PS3O Feel Good PLC

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    #3
    
    $paragraph = "This is my dummy paragraph that includes no important facts and in fact I am making it all up off the top of my head. I trust it was enjoyed by all.";
    
    $rough_short_par = substr($paragraph, 0, 80); //chop it off at 80
    $last_space_pos = strrpos($rough_short_par, " "); //search from end: http://uk.php.net/manual/en/function.strrpos.php
    $clean_short_par = substr($rough_short_par, 0, $last_space_pos);
    // add three dots...
    $clean_sentence = $clean_short_par . "...(read more)"; //could link the read more to full article
    echo $clean_sentence;
    
    
    PHP:
     
    T0PS3O, Oct 10, 2006 IP
    LongHaul likes this.
  4. LongHaul

    LongHaul Peon

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    #4
    Thanks guys!

    T0PS3O, I tried yours first and it works great. Sorry I didn't get a chance to test yours, exam ;)

    What a great thing php is :)
     
    LongHaul, Oct 11, 2006 IP
  5. dariusm

    dariusm Peon

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    #5
    I'm trying to implement the solution below to return a set number of words of a string but I'm a noobie and I'm not quite sure how to implement it.

    Right now, the output is generated with
    <?php echo cOut($row[8]); ?>
    PHP:
    since the data resides in row 8 of the database table. This returns all of the data but what I want is just the 1st 20 or 30 words.

    Any suggestions on how to get this to work for me?
     
    dariusm, Sep 18, 2008 IP