* @version 1.2
*
* 使用方法：
* $libUpload = new \Qii\Library\Upload();
* $libUpload->setAllowed(array('mp3', 'mp4'));
* $uploaded_files = $libUpload->upload('file', array('path' => 'data/tmp',
* 'maxSize' => 1024*1024,
* 'maxFolder' => 100，
* 'prefix' => '',
* ));
*
*/
class Upload
{
const VERSION = '1.2';
public $dir;
public $name;
public $allowed = array('jpg', 'gif', 'png');
public $error;
protected $errorMessage = array(
1 => '文件超出大小限制',
2 => '上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值',
3 => '文件只有部分被上传',
4 => '没有文件被上传',
6 => '找不到临时文件夹',
7 => '文件写入失败',
8 => '上传被其它扩展中断'
);
public $mine = array(
'*' => 'application/octet-stream',
'323' => 'text/h323',
'acx' => 'application/internet-property-stream',
'ai' => 'application/postscript',
'aif' => 'audio/x-aiff',
'aifc' => 'audio/x-aiff',
'aiff' => 'audio/x-aiff',
'asf' => 'video/x-ms-asf',
'asr' => 'video/x-ms-asf',
'asx' => 'video/x-ms-asf',
'au' => 'audio/basic',
'avi' => 'video/x-msvideo',
'axs' => 'application/olescript',
'bas' => 'text/plain',
'bcpio' => 'application/x-bcpio',
'bin' => 'application/octet-stream',
'bmp' => 'image/bmp',
'c' => 'text/plain',
'cat' => 'application/vnd.ms-pkiseccat',
'cdf' => 'application/x-cdf',
'cer' => 'application/x-x509-ca-cert',
'class' => 'application/octet-stream',
'clp' => 'application/x-msclip',
'cmx' => 'image/x-cmx',
'cod' => 'image/cis-cod',
'cpio' => 'application/x-cpio',
'crd' => 'application/x-mscardfile',
'crl' => 'application/pkix-crl',
'crt' => 'application/x-x509-ca-cert',
'csh' => 'application/x-csh',
'css' => 'text/css',
'dcr' => 'application/x-director',
'der' => 'application/x-x509-ca-cert',
'dir' => 'application/x-director',
'dll' => 'application/x-msdownload',
'dms' => 'application/octet-stream',
'doc' => 'application/msword',
'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'dot' => 'application/msword',
'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
'dvi' => 'application/x-dvi',
'dxr' => 'application/x-director',
'eps' => 'application/postscript',
'etx' => 'text/x-setext',
'evy' => 'application/envoy',
'exe' => 'application/octet-stream',
'fif' => 'application/fractals',
'flr' => 'x-world/x-vrml',
'gif' => 'image/gif',
'gtar' => 'application/x-gtar',
'gz' => 'application/x-gzip',
'h' => 'text/plain',
'hdf' => 'application/x-hdf',
'hlp' => 'application/winhlp',
'hqx' => 'application/mac-binhex40',
'hta' => 'application/hta',
'htc' => 'text/x-component',
'htm' => 'text/html',
'html' => 'text/html',
'htt' => 'text/webviewhtml',
'ico' => 'image/x-icon',
'ief' => 'image/ief',
'iii' => 'application/x-iphone',
'ins' => 'application/x-internet-signup',
'isp' => 'application/x-internet-signup',
'jfif' => 'image/pipeg',
'jpe' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'jpg' => 'image/jpeg',
'png' => 'image/png',
'js' => 'application/x-javascript',
'latex' => 'application/x-latex',
'lha' => 'application/octet-stream',
'lsf' => 'video/x-la-asf',
'lsx' => 'video/x-la-asf',
'lzh' => 'application/octet-stream',
'm13' => 'application/x-msmediaview',
'm14' => 'application/x-msmediaview',
'm3u' => 'audio/x-mpegurl',
'man' => 'application/x-troff-man',
'mdb' => 'application/x-msaccess',
'me' => 'application/x-troff-me',
'mht' => 'message/rfc822',
'mhtml' => 'message/rfc822',
'mid' => 'audio/mid',
'mny' => 'application/x-msmoney',
'mov' => 'video/quicktime',
'movie' => 'video/x-sgi-movie',
'mp2' => 'video/mpeg',
'mp3' => 'audio/mpeg',
'mpa' => 'video/mpeg',
'mpe' => 'video/mpeg',
'mpeg' => 'video/mpeg',
'mpg' => 'video/mpeg',
'mpp' => 'application/vnd.ms-project',
'mpv2' => 'video/mpeg',
'ms' => 'application/x-troff-ms',
'mvb' => 'application/x-msmediaview',
'nws' => 'message/rfc822',
'oda' => 'application/oda',
'p10' => 'application/pkcs10',
'p12' => 'application/x-pkcs12',
'p7b' => 'application/x-pkcs7-certificates',
'p7c' => 'application/x-pkcs7-mime',
'p7m' => 'application/x-pkcs7-mime',
'p7r' => 'application/x-pkcs7-certreqresp',
'p7s' => 'application/x-pkcs7-signature',
'pbm' => 'image/x-portable-bitmap',
'pdf' => 'application/pdf',
'pfx' => 'application/x-pkcs12',
'pgm' => 'image/x-portable-graymap',
'pko' => 'application/ynd.ms-pkipko',
'pma' => 'application/x-perfmon',
'pmc' => 'application/x-perfmon',
'pml' => 'application/x-perfmon',
'pmr' => 'application/x-perfmon',
'pmw' => 'application/x-perfmon',
'pnm' => 'image/x-portable-anymap',
'pot,' => 'application/vnd.ms-powerpoint',
'potx,' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
'ppm' => 'image/x-portable-pixmap',
'pps' => 'application/vnd.ms-powerpoint',
'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshowt',
'ppt' => 'application/vnd.ms-powerpoint',
'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
'prf' => 'application/pics-rules',
'ps' => 'application/postscript',
'pub' => 'application/x-mspublisher',
'qt' => 'video/quicktime',
'ra' => 'audio/x-pn-realaudio',
'ram' => 'audio/x-pn-realaudio',
'ras' => 'image/x-cmu-raster',
'rgb' => 'image/x-rgb',
'rmi' => 'audio/mid',
'roff' => 'application/x-troff',
'rtf' => 'application/rtf',
'rtx' => 'text/richtext',
'scd' => 'application/x-msschedule',
'sct' => 'text/scriptlet',
'setpay' => 'application/set-payment-initiation',
'setreg' => 'application/set-registration-initiation',
'sh' => 'application/x-sh',
'shar' => 'application/x-shar',
'sit' => 'application/x-stuffit',
'snd' => 'audio/basic',
'spc' => 'application/x-pkcs7-certificates',
'spl' => 'application/futuresplash',
'src' => 'application/x-wais-source',
'sst' => 'application/vnd.ms-pkicertstore',
'stl' => 'application/vnd.ms-pkistl',
'stm' => 'text/html',
'svg' => 'image/svg+xml',
'sv4cpio' => 'application/x-sv4cpio',
'sv4crc' => 'application/x-sv4crc',
'swf' => 'application/x-shockwave-flash',
't' => 'application/x-troff',
'tar' => 'application/x-tar',
'tcl' => 'application/x-tcl',
'tex' => 'application/x-tex',
'texi' => 'application/x-texinfo',
'texinfo' => 'application/x-texinfo',
'tgz' => 'application/x-compressed',
'tif' => 'image/tiff',
'tiff' => 'image/tiff',
'tr' => 'application/x-troff',
'trm' => 'application/x-msterminal',
'tsv' => 'text/tab-separated-values',
'txt' => 'text/plain',
'uls' => 'text/iuls',
'ustar' => 'application/x-ustar',
'vcf' => 'text/x-vcard',
'vrml' => 'x-world/x-vrml',
'wav' => 'audio/x-wav',
'wcm' => 'application/vnd.ms-works',
'wdb' => 'application/vnd.ms-works',
'wks' => 'application/vnd.ms-works',
'wmf' => 'application/x-msmetafile',
'wps' => 'application/vnd.ms-works',
'wri' => 'application/x-mswrite',
'wrl' => 'x-world/x-vrml',
'wrz' => 'x-world/x-vrml',
'xaf' => 'x-world/x-vrml',
'xbm' => 'image/x-xbitmap',
'xla' => 'application/vnd.ms-excel',
'xlc' => 'application/vnd.ms-excel',
'xlm' => 'application/vnd.ms-excel',
'xls' => 'application/vnd.ms-excel',
'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
'xlt' => 'application/vnd.ms-excel',
'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
'xlw' => 'application/vnd.ms-excel',
'xof' => 'x-world/x-vrml',
'xpm' => 'image/x-xpixmap',
'xwd' => 'image/x-xwindowdump',
'z' => 'application/x-compress',
'zip' => 'application/zip',
);
public function __construct()
{
}
/**
* 设置允许上传的文件类型
* @param array $array 允许上传的文件类型
*/
public function setAllowed(array $array)
{
$this->allowed = $array;
}
/**
* setError
*
* @param String $key
* @param Mix $value
*/
public function setError($key, $value)
{
$this->error[$key] = $value;
}
/**
* 获取错误信息
*
* @param String $key
* @return Mix
*/
public function getError($key)
{
if (!empty($key)) {
return $this->error[$key];
}
return $this->error;
}
/**
* 上传过程中是否有错误
*/
public function isError()
{
return count($this->error) > 0 ? true : false;
}
/**
* 是否为二进制上传
*/
public function isBinaryUpload()
{
return isset($_SERVER['HTTP_CONTENT_DISPOSITION'])
&& preg_match('/attachment;\s+name="(.+?)";\s+filename="(.+?)"/i',
$_SERVER['HTTP_CONTENT_DISPOSITION']);
}
/**
* html5上传
*/
public function uploadBinary($configure)
{
$data = array();
if (!is_array($configure) || empty($configure)) {
$data['code'] = 1406;
$data['src'] = '';
$data['msg'] = 'Configure file is empty';
return $data;
}
//如果文件路径不存在就自动创建
if (!is_dir($configure['path'])) {
mkdir($configure['path'], 0777, true);
}
if (!isset($configure['prefix'])) $configure['prefix'] = '';
$tmpFile = sys_get_temp_dir() . DS . time() . rand(10000, 1000000);
if (isset($_SERVER['HTTP_CONTENT_DISPOSITION'])
&& preg_match('/attachment;\s+name="(.+?)";\s+filename="(.+?)"/i',
$_SERVER['HTTP_CONTENT_DISPOSITION'], $info)
) {
file_put_contents($tmpFile, file_get_contents("php://input"));
$name = urldecode($info[2]);
}
$file = array(
'binary' => true,
'name' => $name,
'type' => '',
'tmp_name' => $tmpFile,
'error' => 0,
'size' => filesize($tmpFile)
);
return $this->deal($file, $configure);
}
/**
* 上传文件
* @param $files
* @param array $configure
* @return array
*/
protected function deal($files, $configure = array(), $index = 0)
{
$data = array();
if (!is_array($configure) || empty($configure)) {
$data['code'] = 1406;
$data['src'] = '';
$data['msg'] = 'Configure file is empty';
return $data;
}
if (is_array($files['name'])) {
foreach ($files['name'] as $key => $value) {
$file = array(
'name' => $files['name'][$key],
'type' => $files['type'][$key],
'tmp_name' => $files['tmp_name'][$key],
'error' => $files['error'][$key],
'size' => $files['size'][$key]
);
$data['files'][] = $this->deal($file, $configure, $key);
}
return $data;
}
if (!isset($files['binary'])) $files['binary'] = false;
if ($files['error'] != UPLOAD_ERR_OK) {
$data['code'] = $files['error'];
$data['src'] = '';
$data['size'] = 0;
$data['msg'] = $this->errorMessage[$files['error']];
$this->setError($index, 100008);
return $data;
}
$extension = pathinfo($files['name'], PATHINFO_EXTENSION);
$extension = strtolower($extension);
if (!in_array($files['type'], $this->mine) || !isset($this->mine[$extension])) {
$data['code'] = 1407;
$data['src'] = '';
$data['size'] = 0;
$data['extension'] = $extension;
$data['msg'] = 'Not Allowed';
return $data;
}
//如果设置允许所有文件上传就不检测
if ($this->allowed[0] != '*' && !in_array($extension, $this->allowed)) {
$data['code'] = 1407;
$data['src'] = '';
$data['size'] = 0;
$data['extension'] = $extension;
$data['msg'] = 'Not Allowed';
return $data;
}
$extension = '.' . $extension;
//如果是设置了保持文件名称的话，就不自动转换文件名
if (isset($configure['keepFileName'])) {
$fileName = pathinfo($files['name'], PATHINFO_FILENAME);
} else {
$fileName = rand(10000, 90000) . uniqid();
}
$configure['fileName'] = $configure['prefix'] . $fileName . $extension;
$subDir = $this->distribution($fileName, $configure['maxFolder']);
$fillPath = $configure['path'];
if (!empty($subDir)) {
$fillPath = $fillPath . '/' . $subDir;
}
if (!is_dir($fillPath)) {
if (!mkdir($fillPath, 0777, true)) {
$data['code'] = 100007;
$data['src'] = 0;
$data['msg'] = 'Access Denied';
$this->setError($index, 100007);
return $data;
}
}
//将文件名转换成URL编码，防止移动文件不成功的情况
$realPath = rtrim($fillPath, '/') . '/' . urlencode($configure['fileName']);
if ($files['binary']) {
$result = rename($files['tmp_name'], $realPath);
} else {
$result = move_uploaded_file($files['tmp_name'], $realPath);
}
if ($result) {
$data['code'] = 0;
$data['src'] = toUTF8($realPath);
$data['name'] = toUTF8($files['name']);
$data['file_type'] = $files['type'];
$data['file_hash'] = md5_file($realPath);
$data['size'] = $files['size'];
} else {
$data['src'] = '';
$data['code'] = 100005;
$data['msg'] = 100005;
$data['size'] = 0;
$this->setError($index, 100005);
}
return $data;
}
/**
* 上传文件
*
* @param String $filed 上传文件域名称
* @param Array $configure array('path' => 'data/tmp',
* 'maxSize' => 1024*1024,
* 'maxFolder' => 100);
*/
public function upload($filed = 'upload', $configure)
{
$data = array();
if ($_FILES[$filed]) {
if (!is_dir($configure['path'])) {
mkdir($configure['path'], 0777, true);
}
if (!isset($configure['prefix'])) $configure['prefix'] = '';
return $this->deal($_FILES[$filed], $configure);
}
return $data;
}
/**
* 自动重命名文件，如果没有指定目录就重命名，否则移动文件
*
* @param Mix $oldName 原始文件名
* @param Mix $newName 新文件名
* @param Bool $keepExtension 是否保持当前文件名
* @return Array|String
*/
public function rename($oldName, $newName, $keepExtension = false)
{
$path = array();
if (is_array($oldName)) {
foreach ($oldName AS $key => $val) {
$path[] = autoRename($val, $newName[$key]);
}
} else {
$oldNameArray = pathinfo($oldName);
$newNameArray = pathinfo($newName);
$dirName = $oldNameArray['dirname'];
//如果第二个文件夹没有包含路径就直接重新命名，否则移动到新的路径下
if ($newNameArray['dirname'] == substr($newName, 0, strlen($newNameArray['dirname']))) {
$dirName = $newNameArray['dirname'];
}
$fileName = $oldNameArray['filename'];
if ($newNameArray['filename']) {
$fileName = $newNameArray['filename'];
}
$extension = '.' . $oldNameArray['extension'];
if (!isset($newNameArray['extension']) && !$keepExtension) {
$extension = '';
}
$newPath = $dirName . '/' . $fileName . $extension;
rename($oldName, $newPath);
return $newPath;
}
return $path;
}
/**
* 过滤images
*
* @param Array $images
* @return Array
*/
public function filterImages($images)
{
$data = array();
if (!is_array($images)) {
return $data;
}
foreach ($images AS $image) {
if (!empty($image)) $data[] = $image;
}
return $data;
}
/**
* 根据配置文件批量缩放图片
* @param $images 图片路径
* @param $configure [{width: 100, height: 100}, ...]
* @return array
*/
public function autoResize($images, $configure)
{
$data = array();
if (is_array($images)) {
foreach ($images AS $image) {
$data[] = $this->autoResize($image, $configure);
}
} else {
$thumbs = array();
foreach ($configure['size'] AS $key => $value) {
$pathInfo = pathinfo($images);
$thumbs[$key] = $small = $pathInfo['dirname'] . '/' . $pathInfo['filename'] . '.' . $key . '.' . $pathInfo['extension'];
$this->imgCutScale($images, $small, $configure['size'][$key]['width'], $configure['size'][$key]['height']);
$this->imgResizeSamll($small, $small, $configure['size'][$key]['width']);
}
return $thumbs;
}
return $data;
}
/**
* 计算存放的文件夹
*
* @param String $fileName 文件名
* @param Int $maxFolder 文件夹数量
* @return String
*/
public function distribution($fileName, $maxFolder = 100)
{
if (empty($maxFolder) || $maxFolder == 1) {
return '';
}
$folder = ord($fileName) % $maxFolder;
if ($folder == 0) {
return $maxFolder;
}
return $folder;
}
/**
* 图片缩放,等比缩放
*
* @param String $bigImg 原图
* @param String $smallImg 缩放以后的图片
* @param Int $width 宽度
* @return Bool
*/
public function imgResizeSmall($bigImg, $smallImg, $width = 392)
{
// 图片路径
if (!file_exists($bigImg)) {
$this->setError('img_resize_samll', $bigImg . "文件不存在");
return false;
} else {
ini_set("memory_limit", "128M");
$filename = $bigImg;
// 获取原图片的尺寸
list($widthOrig, $heightOrig) = getimagesize($filename);
//根据比例，计算新图片的尺寸
$height = ($width / $widthOrig) * $heightOrig;
//新建一个真彩色图像
$destImage = imagecreate($width, $height);
//从 JPEG 文件或 URL 新建一图像
$imageInfo = getimagesize($bigImg);//获取大图信息
switch ($imageInfo[2]) {//判断图像类型
case 1:
$image = imagecreatefromgif($bigImg);
break;
case 2:
$image = imagecreatefromjpeg($bigImg);
break;
case 3:
$image = imagecreatefrompng($bigImg);
$color = imagecolorallocate($image, 255, 255, 255);
imagecolortransparent($image, $color);
imagefill($image, 0, 0, $color);
break;
default:
$image = imagecreatefromjpeg($filename);
break;
}
//重采样拷贝部分图像并调整大小
imagecopyresampled($destImage, $image, 0, 0, 0, 0, $width, $height, $widthOrig, $heightOrig);
// 将图片保存到服务器
imagejpeg($destImage, $smallImg, 100);
//销毁图片，释放内存
imagedestroy($destImage);
return true;
}
}
/**
* 缩放并按给定长宽比裁切图片
* @param string $bigImg 原图路径
* @param string $smallImg 缩放以后的文件路径
* @param int $width 缩放宽度
* @param int $height 缩放高度
*/
public function imgCutScale($bigImg, $smallImg = 'test.jpg', $width = 90, $height = 130)
{
if (!file_exists($bigImg)) {
$this->setError('img_cut_scale', $bigImg . "文件不存在");
return;
}
ini_set("memory_limit", "128M");
//大图文件地址，缩略宽，缩略高，小图地址
$image = getimagesize($bigImg);//获取大图信息
switch ($image[2]) {//判断图像类型
case 1:
$im = imagecreatefromgif($bigImg);
break;
case 2:
$im = imagecreatefromjpeg($bigImg);
break;
case 3:
$im = imagecreatefrompng($bigImg);
$color = imagecolorallocate($im, 255, 255, 255);
imagecolortransparent($im, $color);
imagefill($im, 0, 0, $color);
break;
}
$src_W = imagesx($im);//获取大图宽
$src_H = imagesy($im);//获取大图高
//计算比例
//检查图片高度和宽度
$srcScale = sprintf("%.2f", ($src_W / $src_H));//原图比例
$destScale = sprintf("%.2f", ($width / $height));//缩略图比例
//echo "原始比例:".$srcScale."；目标比例".$destScale."
";
if ($srcScale > $destScale) {
//说明高度不够,就以高度为准
$myH = $src_H;
$myW = intval($src_H * ($width / $height));
//获取开始位置
$myY = 0;
$myX = intval(($src_W - $myW) / 2);
} elseif ($srcScale < $destScale) {
//宽度不够就以宽度为准
$myW = $src_W;
$myH = intval($src_W * ($height / $width));
$myX = 0;
$myY = intval(($src_H - $myH) / 2);
} else {
if ($src_W > $src_H) {
//echo "case 1:
";
$myH = $src_H;
$myW = intval($src_H * ($width / $height));
//获取开始位置
$myY = 0;
$myX = intval(($src_W - $myW) / 2);
}
if ($src_W < $src_H) {
//echo "case 2";
$myW = $src_W;
$myH = intval($src_W * ($height / $width));
$myX = 0;
$myY = intval(($src_H - $myH) / 2);
}
}
if ($src_W == $src_H) {
$myW = intval($src_H * ($width / $height));
$myH = $src_H;
$myX = intval(($src_W - $myW) / 2);
$myY = 0;
}
//echo "SW:" . $src_W ."W:" .$myW . "
X".$myX."
SH".$src_H.";H:" . $myH ."
Y".$myY."
";
//从中间截取图片
if ($image[2] == 3) {
$tn = imagecreate($myW, $myH);//创建小图
} else {
$tn = imagecreatetruecolor($myW, $myH);
}
imagecopy($tn, $im, 0, 0, $myX, $myY, $myW, $myH);
if ($image[2] == 3) {
imagepng($tn, $smallImg, 9);
} else {
imagejpeg($tn, $smallImg, 100);//输出图像
}
imagedestroy($im);
}
/**
*
* 剪切圖片到指定大小
* @param String $bigImg 原始圖片
* @param Int $width 寬
* @param Int $height高
* @param String $smallImg 縮放後保存的圖片
*/
public function imgCutSmall($bigImg, $smallImg, $width, $height)
{
if (!file_exists($bigImg)) {
return;
}
ini_set("memory_limit", "128M");
//大图文件地址，缩略宽，缩略高，小图地址
$imgage = getimagesize($bigImg);//获取大图信息
switch ($imgage[2]) {//判断图像类型
case 1:
$im = imagecreatefromgif($bigImg);
break;
case 2:
$im = imagecreatefromjpeg($bigImg);
break;
case 3:
$im = imagecreatefrompng($bigImg);
break;
}
$src_W = imagesx($im);//获取大图宽
$src_H = imagesy($im);//获取大图高
if ($image[2] == 3) {
$tn = imagecrate($width, $height);//创建小图
} else {
$tn = imagecreatetruecolor($width, $height);
}
imagecopy($tn, $im, 0, 0, 0, 0, $width, $height);
if ($image[2] == 3) {
imagepng($tn, $smallImg, 9);
} else {
imagejpeg($tn, $smallImg, 100);//输出图像
}
imagedestroy($im);
}
/**
* 按比例缩放图片并限制图片的最大宽度或高度
* @param string $bigImg 原图地址
* @param string $smallImg 缩略图地址
* @param int $maxValue 最大宽高
*/
public function imgResizeMaxSize($bigImg, $smallImg, $maxValue = 392)
{
// 图片路径
if (!file_exists($bigImg)) {
$this->setError('img_resize_samll', $bigImg . "文件不存在");
return false;
} else {
ini_set("memory_limit", "128M");
$filename = $bigImg;
// 获取原图片的尺寸
list($widthOrig, $heightOrig) = getimagesize($filename);
$width = $widthOrig;
$height = $heightOrig;
//根据比例，计算新图片的尺寸
if ($widthOrig > $heightOrig) {
if ($widthOrig > $maxValue) {
$width = $maxValue;
$height = ($maxValue / $widthOrig) * $heightOrig;
}
} else {
if ($heightOrig > $maxValue) {
$height = $maxValue;
$width = ($maxValue / $heightOrig) * $widthOrig;
}
}
//$height = ($width / $widthOrig) * $heightOrig;
//新建一个真彩色图像
$destImage = imagecreate($width, $height);
//从 JPEG 文件或 URL 新建一图像
$imageInfo = getimagesize($bigImg);//获取大图信息
switch ($imageInfo[2]) {//判断图像类型
case 1:
$image = imagecreatefromgif($bigImg);
break;
case 2:
$image = imagecreatefromjpeg($bigImg);
break;
case 3:
$image = imagecreatefrompng($bigImg);
$color = imagecolorallocate($image, 255, 255, 255);
imagecolortransparent($image, $color);
imagefill($image, 0, 0, $color);
break;
default:
$image = imagecreatefromjpeg($filename);
break;
}
//重采样拷贝部分图像并调整大小
imagecopyresampled($destImage, $image, 0, 0, 0, 0, $width, $height, $widthOrig, $heightOrig);
// 将图片保存到服务器
imagejpeg($destImage, $smallImg, 100);
//销毁图片，释放内存
imagedestroy($destImage);
return true;
}
}
}