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Round Large Numbers to a Letter Abbreviation eg: 25,000 to 25K

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A little restrictive, but should work for simple implementations. I\'m using this to replicate Facebook\'s \"35K people like this\" button format.\r\nThe original code is included below my modification.

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  1. function abbr_number($size) {
  2.     $size = preg_replace('/[^0-9]/','',$size);
  3.     $sizes = array("", "K", "M");
  4.     if ($size == 0) { return('n/a'); } else {
  5.     return (round($size/pow(1000, ($i = floor(log($size, 1000)))), 0) . $sizes[$i]); }
  6. }
  7.  
  8. function format_size($size) {
  9.     $sizes = array(" Bytes", " KB", " MB", " GB", " TB", " PB", " EB", " ZB", " YB");
  10.     if ($size == 0) { return('n/a'); } else {
  11.     return (round($size/pow(1024, ($i = floor(log($size, 1024)))), $i > 1 ? 2 : 0) . $sizes[$i]); }
  12. }

URL: http://us3.php.net/manual/en/function.filesize.php#99333

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