PHP generates thumbnail function code_PHP tutorial

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Release: 2016-07-13 17:40:34
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  1.  /**
  2. * Generate image thumbnail
  3. *
  4. * @param string $src Original image address
  5. * @param string $savePath Thumbnail save address
  6. * @param integer $width Thumbnail width
  7. * @param integer $height Thumbnail height
  8. * @return string Thumbnail address
  9. */
  10.  function buildThumb($src, $savePath, $width = 220, $height = 180)
  11.  {
  12.      $arr = getimagesize($src);
  13.      if (!is_array($arr)) {
  14.          return false;
  15.      }
  16.      //1,2,3 分别为gif,jpg,png
  17.      if ($arr[2] > 4) {
  18.          return false;
  19.      }
  20.      $func = imagecreatefrom;
  21.      switch ($arr[2]) {
  22.          case 1  : $func .= gif; break;
  23.          case 2  : $func .= jpeg; break;
  24.          case 3  : $func .= png; break;
  25.          default :  $func .= jpeg;
  26.      }
  27.      $srcIm = $func($src);
  28.      $im    = imagecreatetruecolor($width, $height);
  29.       imagecopyresized($im, $srcIm, 0, 0, 0, 0, $width, $height, $arr[0], $arr[1]);
  30.      imagejpeg($im, $savePath);
  31.      imagedestroy($srcIm);
  32.      imagedestroy($im);
  33.      return true;
  34.  }
  35. ?>


www.bkjia.comtruehttp://www.bkjia.com/PHPjc/486193.htmlTechArticle?php /** * 生成图片缩略图 * * @param string $src 原图地址 * @param string $savePath 缩略图保存地址 * @param integer $width 缩略图宽 * @param integer $height 缩...
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