Add Word Limit to Posts

2 comments

1. You can limit is through a filter on the_content

   For example (in functions.php):

   add_filter("the_content", "Content_Filter_Custom");
   
     function Content_Filter_Custom($content)
     {
       // return a subset of it
       return substr($content, 0, 300); 
     }
   

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2. Here are a few filters I rely on for limiting word and character counts. The first is character based but only splits between words.

   function nicetrim( $string ) {
           // limit the length of the given string to $MAX_LENGTH char
           // If it is more, it keeps the first $MAX_LENGTH-3 characters
           // and adds "..."
           // It counts HTML char such as á as 1 char.
   
           $MAX_LENGTH = 50;
   
           if ( strlen(  $string )  <= $MAX_LENGTH ) {
               return $string;
           }
   
           $s2  =  substr( $string, 0, $MAX_LENGTH  );
           $s3  = preg_split( "/s+(?=S*+$)/", $s2 );
           $s4 = $s3[0];
           $s4 .= "…";
           return $s4;
   

   This one excepts a word count variable and looks for your more tag. It also strips out any html before counting then adds it back.

   function trim_the_bio( $the_bio = '',  $all_words = 25, $more_link ='' ) {
           $the_bio = strange_chars ( $the_bio );
           $html = '</span><a id="more-link" href="#">More &darr;</a><a style="display:none;" id="less-link" href="#">Less &uarr;</a>';
           // Removes any tags not in the allowed tags array
           $allowed_tags = array ( 'a', 'abbr', 'b', 'blockquote', 'b', 'cite', 'code', 'div', 'em', 'fon', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'i', 'img', 'label', 'i', 'pre', 'span', 'strong', 'title', 'ul', 'ol', 'li', 'object', 'embed', 'param' );
           if ( $the_bio != '' && $all_words > 0 ) {
               // process allowed tags
               $allowed_tags = '<' . implode( '><', $allowed_tags ) . '>';
               $the_bio = str_replace( ' ]]>', ' ]]>', $the_bio );
               $the_bio = strip_tags( $the_bio, $allowed_tags );
               if ( 20 < count ( preg_split ( '/[s]+/', strip_tags ( $the_bio ), - 1 ) ) && $more_link != '' ) $flag = true; else $flag = false;
               // exclude HTML from counting words
               if ( $all_words > count( preg_split( '/[s]+/', strip_tags( $the_bio ), -1 ) ) )  if ( $flag == false ) { return $the_bio; } else { return $the_bio.$html; }
               // count all
               $all_chunks = preg_split( '/([s]+)/', $the_bio, -1, PREG_SPLIT_DELIM_CAPTURE );
   
               $the_bio = '';
               $count_words = 0;
               $enclosed_by_tag = false;
               foreach ( $all_chunks as $chunk ) {
                   // is tag opened?
                   if ( 0 < preg_match( '/<[^>]*$/s', $chunk ) ) $enclosed_by_tag = true;
                   elseif ( 0 < preg_match( '/>[^<]*$/s', $chunk ) ) $enclosed_by_tag = false; // get entire word
                   if( !$enclosed_by_tag && '' != trim( $chunk ) && substr( $chunk, -1, 1 ) != '>' ) $count_words ++;
                   $the_bio .= $chunk;
                   if ( $count_words >= $all_words && !$enclosed_by_tag ) break;
               }
   
               // Close any unclosed tags
               $the_bio = force_balance_tags( $the_bio );
           }
   
           // Throw it down...
          if ( $more_link != '' ) return $the_bio . $html;
          else return $the_bio;
       }
   

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