Обрезание картинок

[vave]

Как сделать что бы картинки (превьюшки) обрезались по центру?

вот код

<?

  function safe_data ($firste, $second)
  {
    if ($second == 'query')
    {
      if (is_array ($firste))
      {
        foreach ($firste as $safedatafor => $safedatasry)
        {
          if (get_magic_quotes_gpc ())
          {
            $safedatasry = stripslashes ($safedatasry);
          }

          $firste[$safedatafor] = addslashes ($safedatasry);
        }

        return $firste;
      }

      if (get_magic_quotes_gpc ())
      {
        $safedatasry = stripslashes ($safedatasry);
      }

      $firste = addslashes (stripslashes ($firste));
      return $firste;
    }

    if ($second == 'display')
    {
      if (is_array ($firste))
      {
        foreach ($firste as $safedatafor => $safedatasry)
        {
          $firste[$safedatafor] = htmlspecialchars (stripslashes ($safedatasry), ENT_QUOTES);
        }

        return $firste;
      }

      $firste = htmlspecialchars (stripslashes ($firste), ENT_QUOTES);
    }

    return $firste;
  }

  function price ($price)
  {
    $price = ereg_replace ('[^0-9.]', '', $price);
    $price = explode ('.', $price);
    return $price[0];
  }

  function check_pass ($checkpassfirste, $checkpasssecond)
  {
    $checkpassry = true;
    if ($checkpassfirste !== $checkpasssecond)
    {
      $checkpassry = false;
    }

    if (!((!(strlen ($checkpassfirste) < 6) AND !(20 < strlen ($checkpassfirste)))))
    {
      $checkpassry = false;
    }

    if (!((!ereg ('[[:punct:]]', $checkpassfirste) AND !ereg ('[[:space:]]', $checkpassfirste))))
    {
      $checkpassry = false;
    }

    return $checkpassry;
  }

  function check_user ($checkuserone)
  {
    $checkpassry = true;
    if (!((!(strlen ($checkuserone) < 6) AND !(20 < strlen ($checkuserone)))))
    {
      $checkpassry = false;
    }

    if (!((!ereg ('[[:punct:]]', $checkuserone) AND !ereg ('[[:space:]]', $checkuserone))))
    {
      $checkpassry = false;
    }

    return $checkpassry;
  }

  function check_email ($checkemailone)
  {
    $checkemailtou = '^([_a-z0-9-]+)(\\.[_a-z0-9-]+)*@([a-z0-9-]+)(\\.[a-z0-9-]+)*(\\.[a-z]{2,4})$';
    $checkpassry = false;
    if (eregi ($checkemailtou, $checkemailone))
    {
      $checkpassry = true;
    }

    return $checkpassry;
  }

  function summary ($summaryone, $summarytou)
  {
    if ($summarytou < substr_count ($summaryone, ' '))
    {
      $summaryone = explode (' ', $summaryone);
      $summaryone = array_slice ($summaryone, 0, $summarytou);
      $summaryone = implode (' ', $summaryone) . ' ...';
    }

    return $summaryone;
  }

  function new_dim ($newdimone, $newdimtou, $newdimsry, $newdimfor)
  {
    if ($newdimsry < $newdimone)
    {
      $newdimfive = $newdimsry / $newdimone;
      $newdimone = $newdimsry;
      $newdimtou = round ($newdimtou * $newdimfive);
    }

    if ($newdimfor < $newdimtou)
    {
      $newdimfive = $newdimfor / $newdimtou;
      $newdimtou = $newdimfor;
      $newdimone = round ($newdimone * $newdimfive);
    }

    return array ('x' => $newdimone, 'y' => $newdimtou);
  }

  function resize ($resizeone, $resizetou, $newdimone, $newdimtou, $resizestry, $resizefor, $resizefive)
  {
    if ($resizefive == 2)
    {
      $resizeone = imagecreatefromjpeg ($resizeone);
      $resizesex = imagecreatetruecolor ($resizestry, $resizefor);
      imagecopyresampled ($resizesex, $resizeone, 0, 0, 0, 0, $resizestry, $resizefor, $newdimone, $newdimtou);
      touch ($resizetou);
      imagejpeg ($resizesex, $resizetou, 100);
      imagedestroy ($resizesex);
      return null;
    }

    if ($resizefive == 3)
    {
      $resizeone = imagecreatefrompng ($resizeone);
      $resizesex = imagecreatetruecolor ($resizestry, $resizefor);
      imagecopyresampled ($resizesex, $resizeone, 0, 0, 0, 0, $resizestry, $resizefor, $newdimone, $newdimtou);
      touch ($resizetou);
      imagepng ($resizesex, $resizetou, 100);
      imagedestroy ($resizesex);
    }

  }

  function dropdown ($dropdownone, $dropdowntou)
  {
    foreach ($dropdownone as $safedatasry)
    {
      $safedatasry = str_replace ('', '', $safedatasry);
      echo '<option value=\'' . $safedatasry . '\'';
      if (trim ($safedatasry) == $dropdowntou)
      {
        echo ' selected=\'selected\'';
      }

      echo '>' . trim ($safedatasry) . '</option>';
    }

  }

  function page_links ($firste, $pagelinksone, $pagelinkstou)
  {
    foreach ($firste as $safedatafor => $safedatasry)
    {
      if ($safedatafor != 'page')
      {
        $checkpassfirste .= '&amp;' . $safedatafor . '=' . $safedatasry;
        continue;
      }
    }

    if (1 < $firste[page])
    {
      echo '<a href=\'' . $pagelinkstou . '?page=' . ($firste[page] - 1) . $checkpassfirste . '\'>Prev</a>&nbsp;&nbsp;';
    }

    if (1 < $pagelinksone)
    {
      if (1 <= $firste[page] - 5)
      {
        $pagelinkssri = $firste[page] - 5;
      }
      else
      {
        $pagelinkssri = 1;
      }

      if ($pagelinkssri + 9 <= $pagelinksone)
      {
        $pagelinksfor = $pagelinkssri + 9;
      }
      else
      {
        $pagelinksfor = $pagelinksone;
        if (1 <= $pagelinksfor - 9)
        {
          $pagelinkssri = $pagelinksfor - 9;
        }
        else
        {
          $pagelinkssri = 1;
        }
      }

      for ($pagelinksfive = $pagelinkssri; $pagelinksfive <= $pagelinksfor; ++$pagelinksfive)
      {
        echo '<a ';
        if ($pagelinksfive == $firste[page])
        {
          echo 'class=\'current\'';
        }

        echo ' href=\'' . $pagelinkstou . '?page=' . $pagelinksfive . $checkpassfirste . ('\'>' . $pagelinksfive . '</a> ');
      }
    }

    if ($firste[page] < $pagelinksone)
    {
      echo '&nbsp;<a href=\'' . $pagelinkstou . '?page=' . ($firste[page] + 1) . $checkpassfirste . '\'>Next</a>';
    }

  }

  function filter_string ($summaryone)
  {
    $filterstringone = array ('content-type', 'mime-version', 'multipart/mixed', 'content-transfer-encoding', 'bcc:', 'cc:', 'to:');
    foreach ($filterstringone as $filterstringtou)
    {
      if (substr_count (strtolower ($summaryone), $filterstringtou))
      {
        exit ('Suspected email injection attempt from ' . $_SERVER[REMOTE_ADDR] . ' - mail not being sent.');
      }
    }

  }

  function filter_newline ($summaryone)
  {
    if (preg_match ('/(%0a|%0d|\\n+|\\r+)/i', strtolower ($summaryone)) != 0)
    {
      exit ('Suspected email injection attempt from ' . $_SERVER[REMOTE_ADDR] . ' - mail not being sent.');
    }

  }

?>

и вот

<?

  $lgen = '7jse87w34f';
  $user_types = array (1 => 'User', 'Administrator', 'Superuser');
  $status = array (1 => 'Available', 'Sale Pending', 'Sold');
  $sizes = array ('enlarge' => array (600, 500), 'large' => array (390, 293), 'thumb' => array (150, 250), 'small' => array (67, 50));
?>

 

[dr.5y51em]

Используйте

Для просмотра скрытого содержимого вы должны войти или зарегистрироваться.

там примеры, удобная документация. Из приятных мелочей, есть "умная" ширина, высота и позиционирование (как в px так и в %)

 

[асс]

Я режу так? и все отлично работает

 $w=80;    //Высота  картинки превью
    $h=80;     //Ширина  картинки превью
preg_match( "/<img id=\"img\"  src=\"(.*?)\"/is"$cur_contents, $preg_images3);
 $preg_images3='http://dagbarter.ru'.$preg_images3[1];
 if (!$preg_images[1]){$image_title="no.png";} else{
$im=@imagecreatefromjpeg($preg_images3);
$im1=@imagecreatetruecolor($w,$h);
    @imagecopyresampled($im1,$im,0,0,0,0,$w,$h,@imagesx($im),@imagesy($im));
    @imagejpeg($im1,'imagespapka/'.$image_title3,100);
    @imagedestroy($im);
    @imagedestroy($im1);

 }