$maxWidth,'height' => $maxHeight);
}
/**
* 等比例生成缩略图
*
* @param String $srcFile 原始文件路径
* @param String $dstFile 目标文件路径
* @param Integer $maxWidth 生成的目标文件的最大宽度
* @param Integer $maxHeight 生成的目标文件的最大高度
* @return Boolean 生成成功则返回true，否则返回false
*/
function makeThumb($srcFile, $dstFile, $maxWidth, $maxHeight) {
if ($size = getimagesize($srcFile)) {
$srcWidth = $size[0];
$srcHeight = $size[1];
$mime = $size['mime'];
switch ($mime) {
case 'image/jpeg';
$isJpeg = true;
break;
case 'image/gif';
$isGif = true;
break;
case 'image/png';
$isPng = true;
break;
default:
return false;
break;
}
//header("Content-type
mime");
$arr = getNewSize($maxWidth, $maxHeight, $srcWidth, $srcHeight);
$thumbWidth = $arr['width'];
$thumbHeight = $arr['height'];
if ($isJpeg) {
$dstThumbPic = imagecreatetruecolor($thumbWidth, $thumbHeight);
$srcPic = imagecreatefromjpeg($srcFile);
imagecopyresampled($dstThumbPic, $srcPic, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $srcWidth, $srcHeight);
//imagecopyresized($dstThumbPic, $srcPic, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $srcWidth, $srcHeight);
imagejpeg($dstThumbPic, 'p1_thumb.jpg', 100);
imagedestroy($dstThumbPic);
imagedestroy($srcPic);
} elseif ($isGif) {
//$dstThumbPic = imagecreate($thumbWidth, $thumbHeight); /* attention */
$dstThumbPic = imagecreatetruecolor($thumbWidth, $thumbHeight); /* attention */
//创建透明画布
imagealphablending($dstThumbPic, true);
imagesavealpha($dstThumbPic, true);
$trans_colour = imagecolorallocatealpha($dstThumbPic, 0, 0, 0, 127);
imagefill($dstThumbPic, 0, 0, $trans_colour);
$srcPic = imagecreatefromgif($srcFile);
imagecopyresampled($dstThumbPic, $srcPic, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $srcWidth, $srcHeight);
//imagecopyresized($dstThumbPic, $srcPic, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $srcWidth, $srcHeight);
imagegif($dstThumbPic, 'p2_thumb.gif');
imagedestroy($dstThumbPic);
imagedestroy($srcPic);
} elseif ($isPng) {
$dstThumbPic = imagecreatetruecolor($thumbWidth, $thumbHeight);
//创建透明画布
imagealphablending($dstThumbPic, true);
imagesavealpha($dstThumbPic, true);
$trans_colour = imagecolorallocatealpha($dstThumbPic, 0, 0, 0, 127);
imagefill($dstThumbPic, 0, 0, $trans_colour);
$srcPic = imagecreatefrompng($srcFile);
imagecopyresampled($dstThumbPic, $srcPic, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $srcWidth, $srcHeight);
//imagecopyresized($dstThumbPic, $srcPic, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $srcWidth, $srcHeight);
imagepng($dstThumbPic, 'p3_thumb.png');
imagedestroy($dstThumbPic);
imagedestroy($srcPic);
} else {
return false;
}
} else {
return false;
}
}
/* 缩略图长宽限制 */
$thumbMaxWidth = "400";
$thumbMaxHeight = "400";
/* 浏览图长宽限制 */
$browseMaxWidth = "400";
$browseMaxHeight = "400";
foreach ($arrFile as $file) {
makeThumb($file, 'images/', $thumbMaxWidth, $thumbMaxHeight);
}
die('ok');
?>
