truncatetext.php

<?php

function safe_truncate_text($text, $lenght)
{
  $parts          = explode(' ', $text);
  $truncatedText  = '';
  $x              = 0;
  
  while(strlen($truncatedText) <= $lenght && $x < count($parts))
  {
    if (strlen($truncatedText) + strlen($parts[$x]) <= $lenght)
    {
      $truncatedText .= $parts[$x] . ' '; 
    }
    
    $x++;
  }
  
  $text = rtrim($truncatedText);
  
  return strlen($text) ? $text . '...' : '';
}


/// TEST

$text = "Text Text Text Text Text ";

$t->is(safe_truncate_text($text, 10), 'Text Text...');
$t->is(safe_truncate_text($text, 1), '');
$t->is(safe_truncate_text($text, 12), 'Text Text...');
$t->is(safe_truncate_text($text, 15), 'Text Text Text...');
$t->is(safe_truncate_text('The quick', 2), '');
$t->is(safe_truncate_text('The quick', 4), 'The...');
$t->is(safe_truncate_text('The quick', 6), 'The...');
$t->is(safe_truncate_text('The quick', 9), 'The quick...');

vai di preg_replace

Somebody on twitter suggested:
$s = preg_replace('/ [^ ]*$/', ' ...', $s);

but it does not work: since I suck at regex I need to spend some more time in this...

There's a function in smarty to do this, maybe you can look at it.

How about:

function safe_truncate_text($text, $length)
{
    $tmp = (strlen($text) == $length) ? $text : substr($text, 0, strrpos(substr($text, 0, $length), " "));
    return ($tmp != "") ? $tmp."..." : "";
}