Re: 'the missing character'

Hi! As a quick hack i just changed the 3499 to 3500 and that fixed it, well at least so far.. not to sure what I was thinking when I built that function. I would like to see the split function you have. I did not know about strlen() :-) ... Jimmy Brake On Wed, 16 May 2001, Szii wrote: > I don't understand xcount(). > Instead of xcount(), why not use strlen()? > > Say we have 7100 chars.... > > If you step through, first pass > > $i = 0 > $chunk_count = 2 > $start = 0 > $final = 3500 > $text[] is chars 0-3499 > > second pass > > $i = 1 // from $i++ > $chunk_count = 2 > $start = 3501 // problem is here - note the endpoint of the last pass in > $text[]? > $final = 3499 > $text[] is chars 3501-7000 // what happened to char 3500 itself? > > Remember that substr() takes a start point, and an offset - not an endpoint. > So after the first pass, you've read in 0-3499 as is correct, but you have > an extraneous if() clause that inc's your start by one, and then adds 3500. > > Drop the second if($start == 0) clause which sets $start to 1. > > 'Luck > > -Szii > > > > > > ----- Original Message ----- > From: "Jimmy Brake" <jimmy@cp.net> > To: <php-db@lists.php.net> > Sent: Tuesday, May 15, 2001 9:54 PM > Subject: [PHP-DB] 'the missing character' > > > > Hi! > > > > Does anyone know of a function in php that will take a chunk of text and > seperate it into 'chunks' preferably returning it in an array? > > > > The reason being is that I have some columns(oracle) that are set to > varchar2(4000) and I have text that is 4000+ AND :-) I cannot change it to > another format. > > > > I was unable to find a chunk maker so I built one. > > > > function chunk_maker($text) > > { > > // have to count the number of characters, if over 3500 characters > need to split into chunks of 3500 characters > > $count = xcount($text); > > if($count > 3500) > > { > > $chunk_count = $count/3500; > > //need to clean up the $chunk_count by removing the > trailing decimals and > > //adding one to the total to make sure we do not loose in > characters > > $chunk_count = floor($chunk_count)+1; > > $i=0; > > $start=0; > > while($i != $chunk_count) > > { > > // err well this helps to make sure we get the > correct amount of characters > > if($start == 0) > > { > > $final = 3500; > > } else { > > $final = 3499; > > } > > > > //now we need to make the chunks and stick them in > an array > > > > $text2[]=substr($text,$start,$final); > > > > // err well this helps to make sure we get the > correct amount of characters > > if($start == 0) > > { > > $start=1; > > } > > $start=$start+3500; > > $i++; > > } > > } else { > > $text2[] = $text; > > } > > return($text2); > > } > > > > function xcount($text) > > { > > global $debug; > > foreach (count_chars($text) as $my_value) > $length=$length+$my_value; > > tracker($length); > > return($length); > > } > > > > > > If I just failed to find the right functions please let me know, otherwise > please help! :-) > > > > > > Jimmy Brake > > > > > > -- > > PHP Database Mailing List (http://www.php.net/) > > To unsubscribe, e-mail: php-db-unsubscribe@lists.php.net > > For additional commands, e-mail: php-db-help@lists.php.net > > To contact the list administrators, e-mail: php-list-admin@lists.php.net > >