Something

<?php$pattern = '@(width|height)="([0-9]+)"@';$str = "<object width=\"300\" height=\"247\"><param name=\"movie\" value=\"http://www.youtube.com/v/YNb5dfeI93I\"></param><param name=\"wmode\" value=\"transparent\"></param><embed src=\"http://www.youtube.com/v/YNb5dfeI93I\" type=\"application/x-shockwave-flash\" wmode=\"transparent\" width=\"123\" height=\"441\"></embed></object>";preg_match_all($pattern, $str, $out, PREG_PATTERN_ORDER);$width = $out[2][0];$height = $out[2][1];$width2 = $out[2][2];$height2 = $out[2][3];if ($height > 150)          {               $height = 150;               $percent = ($height2 / $height);               $width = ($width2 / $percent);          }     else if ($width > 150)          {               $width = 150;               $percent = ($width2 / $width);               $height = ($height2 / $percent);          }          echo $width." ".$height."\n";                  $pat[0] = '@width="([0-9]+)"@';                  $pat[1] = '@height="([0-9]+)"@';                  $rep[0] = 'width="'.$width.'"';                  $rep[1] = 'height="'.$height.'"';         echo preg_replace($pat, $rep, $str);?>