Spezzare delle stringhe

[k_abuto]

ho risolto con questa funzione

<?php

function textWrap($text, $size, $separator="
" ) {

   $new_text = '';
   $text_1 = explode('>',$text);
   $sizeof = sizeof($text_1);
   $remain = $size;
  
   for ($i=0; $i<$sizeof; ++$i) {
      
       $text_2 = explode('<',$text_1[$i]);
      
       if (!empty($text_2[0])){
           $perl = '/([^\\n\\r .]{'. $remain .',})/i';
           $possibly_splitted= preg_replace( $perl, '$1'.$separator, $text_2[0] );
          
           $splitted = explode($separator,$possibly_splitted);
           $remain -= strlen($splitted[0]);
           if($remain<=0) $remain = $size;
          
           $new_text .= $possibly_splitted;
       }
  
       if (!empty($text_2[1])) $new_text .= '<' . $text_2[1] . '>';
   }
   return $new_text;
}
?>

saluti!