Removing Short Words Under 4 Letters

[phpseeker]

Hi,

I have a title tag module but i want to edit this like that, i want to remove short words, under 4 letters, here is the sentences but it must be like that:

current: Jack and Jenny are going to the bus stop
must be: Jack Jenny going stop

How can i do that? here is the code...

 <? 
$tagArray = array(); 

$tags = "Jack and Jenny are going to the bus stop"; 

foreach (str_word_count($tags,1,'áé&#8216;') as $tag ) 

{ 
 array_key_exists ( $tag, $tagArray ) ? $tagArray[ $tag ]++ : $tagArray[ $tag ] = 0; 
} 
 
function clouds( $tagArray = array() ) 
{ 
 foreach( $tagArray as $tag => $say ) 

 { 
 $tag=mb_strtolower($tag, 'UTF-8'); 
 
 $cloudArray[] = '<a class="tag" href="tags/'.$tag.'" title="'.$tag.'">'. htmlspecialchars( stripslashes( $tag ) ) . '</a>'; 


 } 
 
 return join( "\n", $cloudArray ) . "\n"; 
} 
echo clouds( $tagArray ); 

?>

also below code is doing it but how can i integrate this code to above code?

 <?php

$str = 'Jack and Jenny are going to the bus stop';
$words = explode(' ', trim($str));
$strOut = '';
foreach ($words as $word) {
 if (strlen($word) > 3) {$strOut .= $word . ' ';}
}
$strOut = trim($strOut);
echo $strOut; //output string

?>

[brotherhood of LAN]

Welcome to the forums phpseeker,

Hopefully this is helpful

function string_to_cloud($string) { $cloudArray = array(); $tags = preg_split("'\s+'",trim(preg_replace("'\b[a-z0-9]{1,3}\b'i",' ',$string))); foreach($tags as $tag) $cloudArray[] = ''. htmlspecialchars(stripslashes($tag)).''; return implode("\n",$cloudArray); } echo $cloudArray = string_to_cloud('Jack and Jenny are going to the bus stop ');

Function accepts a string of words and converts them to a list of links with each word in the string that is >3 chars in length

Word is defined as alphanumeric characters, A-Z and 0-9... case insensitive as denoted by the "i" flag

preg_replace uses word boundaries [regular-expressions.info] to match words of 1-3 chars, and replaces them with a space

preg_split splits the string into words, regardless of the number of spaces between words

array is walked through to generate <a> tags

array imploded and returned as string

// Added
If you want to ensure unique tags, I'd just change $cloudArray[] to $cloudArray[$tag]

[phpseeker]

very helpful thank you but also i want to use some function for this code, for example:

deletes duplicate words
[php]array_key_exists ( $tag, $tagArray ) ? $tagArray[ $tag ]++ : $tagArray[ $tag ] = 0; [/php]

showing special characters

foreach (str_word_count($tags,1,'áéíóú‘') as $tag ) 

making letters lowercase

$tag=mb_strtolower($tag, 'UTF-8');

can i use these functions on your code? and how? thanks...

[penders]

brotherhood of LAN's function looks far more whizz, however, you could just add 1 line of code to your current script to filter out your short words...

function clouds( $tagArray = array() ) 
{  
  foreach( $tagArray as $tag => $say ) 
  { 
    if (strlen($tag) < 4) continue; 
    :

@brotherhood of LAN: Will preg_replace() produce the same output as str_word_count() in this case? str_word_count() is locale aware and phpseeker has included an additional charlist.

@phpseeker: Do you intend to use the count of each word to render your 'cloud'. This seems to be an unnecessary extra step currently.

[phpseeker]

@penders, can you paste full code please, i added but not worked

[penders]

function clouds( $tagArray = array() ) 
{  
 foreach( $tagArray as $tag => $say ) 
 { 
  if (strlen($tag) < 4) continue; 
   $tag=mb_strtolower($tag, 'UTF-8');  
   $cloudArray[] = '<a class="tag" href="tags/'.$tag.'" title="'.$tag.'">'. htmlspecialchars( stripslashes( $tag ) ) . '</a>';  
  }  
  return join( "\n", $cloudArray ) . "\n";  
}

The line in red is the only line added to your current script. Admittedly I've not actually tested this, but I can't see why it wouldn't work. Do you get an error, or is it just not filtering out the small words?

[edited by: penders at 12:00 pm (utc) on Jun 27, 2011]

[brotherhood of LAN]

phpseeker, it looks like if you add the line penders has highlighted in red, your script should do exactly as intended using your initial PHP + their one line solution.

penders... you're right, i skimmed the OP and missed that. preg_split can indeed get the same effect I believe, using the 'u' modifier. You can also reference characters using octal codes, however I've been lazy and copied/pasted the list of special chars into the regex here:

function string_to_cloud($string) { $cloudArray = array(); $tags = preg_split("'\s+'",trim(preg_replace("'[^áéíóúa-z0-9‘][áéíóúa-z0-9‘]{1,3}[^áéíóúa-z0-9‘]'iu",' ',mb_strtolower(htmlspecialchars(stripslashes($string)),'UTF-8')))); foreach($tags as $tag) $cloudArray[$tag] = ''.$tag.''; return implode("\n",$cloudArray); } echo $cloudArray = string_to_cloud('Jackáéíóú and Jeáéíóúnny are going to the bus stop ');

Try running it again, I had an extra bracket in there causing the error

[edited by: brotherhood_of_LAN at 12:13 pm (utc) on Jun 27, 2011]

[phpseeker]

it gave error, i think there is problem here ("'[^áéíóúa-z0-9‘

[phpseeker]

@brotherhood of LAN, thank you very much but @penders edited code worked for me.

@penders, also thanks a lot your code is worked perfectly with my current code, this is what i want, thanks again...