掃描一個檔案目錄下所有圖片，縮放後放在另一個目錄

 圖片批次縮放



 class tool_slt_resize{
 public $width=null;
 public $height=null;
 public $MMsg=null;
 publicsgension_🎜> public $MMsg=null;
 'jpg','gif','jpeg','png','bmp');
 public function __construct(){
 header('Content-type: text/html; charset=UTF-8' );
 }

 /**
 * 讀取一個資料夾下所有的檔案
 * @param $src 資料夾路徑
 * @return bool
*/
 public function getAllFile($src,$new){
 set_time_limit(0); //php腳本運行時間無限時
 ob_end_clean(); //關鍵1
 echo str_pad('',1024); //關鍵2

 $handle=opendir($src); //開啟目錄句柄
 while(($file=readdir($handle)) !== false){ //循環遍歷目錄下的所有檔案
 if($file != '.' && $file != '..' ) { //如果不是目前目錄或上層目錄
 $fullPath = $src.'/'.$file; //得到目前檔案的全路徑
 $newPath = $new.'/'.$file; //新的檔案存放路徑
 $dir=dirname($newPath);
 if(!file_exists($dir)){
 mkdir($dir);
 }
 if( is_dir($fullPath)){ //判斷是否表示一個資料夾
 $this->getAllFile($fullPath,$newPath); //是資料夾的話再遞歸執行一次函數
 }else{ //開始影像處理
 $extentsion=$this->get_extension($fullPath);
 if(in_array($extentsion,$this->extension)){ //後綴是否合法
 // echo $newPath .'';
 $im = imagecreatefromjpeg($fullPath);
 $width = imagesx($im);
 $height = imagesy($im);
 $this- >resize_to($im,$width,$height,$this->width,$this->height,$fullPath,$newPath);
 $msg= $fullPath.'處理完成';
 echo $msg;
 flush(); //刷新輸出緩衝
 }
 }
 }
 }
 echo '全部處理完成';
 }


 /**
 * 取得一些影像的資訊
 * getimagesize回傳一個四個單元的陣列($width, $height, $type, $attr)
 * @param $src
 * @return array
*/
 public function getImgInfo($src){
 return getimagesize($src);
 }

 /
 * 取得檔案字尾
 * @param $file
 * @return mixed
*/
 function get_extension($file){
 $info = pathinfo($file);
 return strtolower($info['extension']);
 }
 //圖片縮放
 public function resize_to($image,$width,$height,$dst_width,$dst_height,$path,$dstpath){
 // set_time_limit(0);
 $resize_width = 00; 🎜> $resize_height = 0;
 if($dst_width && $width > $dst_width ){
 $resize_width = 1;
 $width_ratio = $dst_width/dst_wid ($dst_height && $height > $dst_height){
 $resize_height = 1;
 $height_ratio = $dst_height/$height;
 }
 if($resize_height&&$resize_height&wid /寬度優先
 if($width_ratio  $scale_org[0] = $width * $width_ratio;
 $scale_org[1] = $height * $width_ratio;
 $scale_org[1] = $height * $width_ratio;
 $scale_org[1] = $height * $width_ratio;
 $scale_org[1] = $height * $width_ratio;
 $scale_org[1] = $height * $width_ratio; $scale_org[1] = $height * $width_ratio; $scale_org[1] = $height * $width_ratio; $scale_org[1] = $height * $width_ratio; } }
 // 高度優先
 else{
 $scale_org[0] = $width * $height_ratio;
 $scale_org[1] = $height * $height_ratio;
 }
 }
 elseif($resize_width){
 $scale_org[0] = $dst_width;
 $scale_org[1] = $dst_width*$height/$width;
 } $scale_org[0] = $dst_height*$width/$height;
 $scale_org[1] = $dst_height;
 }
 if(function_exists("imagecopyres $newim = imagecreatetruecolor($scale_org[0], $scale_org[1]);
 imagecopyresampled($newim, $image, 0, 0, 0, 0, $scale_org[0], $scale_org[1] , $width, $height);
 }else{
 $newim = imagecreate($scale_org[0], $scale_org[1]);
 imagecopyresized($newim, $image, 0, 0, 0, 0,$scale_org[0], $scale_org[1], $width, $height);
 }
 ImageJpeg ($newim,$dstpath);
 ImageDestroy ($newim);
 }
 }

 $a=new tool_slt_resize();                                   //接受表單資料開始處理圖片
 $oldPath=isset($_GET['oldPath'])?$_GET['oldPath']:'';
 $newPath=isset($_GET['newPath' ) ) ])?$_GET['newPath']:'';
 $width=isset($_GET['width'])?$_GET['width']:'';
 $height= isset ( $_GET['height'])?$_GET['height']:'';
 $a->width=$width;
 $a->height=$height;
 if ( isset($_GET['提交'])){
 if($oldPath==''||$newPath==''||$width==''){
 echo '請正確填寫表單';
 退出;
 }else{
 $a->getAllFile($oldPath,$newPath);

 }
 }
 ?>
 ?>
 ?>
 ?>
 ?>
 ?>
 ?>
 ?>
 ?>
 ?>
 ?> h1 > 圖片縮放縮放

  原始圖片資料夾

複製程式碼