php簡單的上傳類分享，php上傳分享_PHP教程

php簡單的上傳類分享，php上傳分享

本文執行個體為大家分享了php上傳類，供大家參考，具體內容如下

<?phpclass UploadFile{  var $inputName;         //控制項名  var $allowType = array(        'image/gif','image/jpg','image/jpeg','image/png','image/x-png','image/pjpeg'  );                //上傳類型  var $allowSize = 2097152;  //限制大小  var $saveDir = UPLOAD;   //儲存目錄  var $isRename = true;        //是否重新命名，預設為true  var $errID = 0;           //錯誤碼，預設為0  var $errMsg = "";          //錯誤資訊  var $savePath = "";         //儲存路徑  function __construct($inputName,$allowType="",$allowSize="",$saveDir="",$isRename=true){    if(empty($inputName)){      $this->chk_err(-1);    //無傳入控制項名    }else{      $this->inputName = $inputName;    }    if(!empty($allowType)) $this->allowType = $allowType;    if(!empty($allowSize)) $this->allowSize = $allowSize;    if(!empty($saveDir)) $this->saveDir = $saveDir;    if(!empty($isRename)) $this->isRename = $isRename;  }  function is_uploaded(){    if(empty($_FILES[$this->inputName]['name'])){      $this->chk_err(4);  //沒有檔案被上傳    }else{      if(is_uploaded_file($_FILES[$this->inputName]['tmp_name'])){        return true;      }else{        $this->chk_err(-2);    //檔案上傳不合法      }    }  }  function chk_type(){    if(!in_array($_FILES[$this->inputName]['type'],$this->allowType)){      $this->chk_err(-3);     //上傳的檔案類型不被允許    }else{      return true;    }  }  function chk_size(){    if($_FILES[$this->inputName]['size'] > $this->allowSize){      $this->chk_(-4);     //上傳的檔案過大    }else{      return true;    }  }  function move_uploaded(){    //移動上傳檔案    if(!$this->is_uploaded()){      return false;    }    if(!$this->chk_size()){      return false;    }    if(!$this->chk_type()){      return false;    }    //重新命名    if($this->isRename){      $arrTmp = pathinfo($_FILES[$this->inputName]['name']);      $extension = strtolower($arrTmp['extension']);      $file_newname = date("YmdHis").rand(1000,9999)."00.".$extension; //重新命名新檔案， 00表示為上傳的為原圖    }else{      $file_newname = $_FILES[$this->inputName]['name'];    }        if(!file_exists($this->saveDir)){    //判斷儲存目錄是否存在      mkdir($this->saveDir,0777,true);  //建立儲存目錄    }    //移動檔案    $result = move_uploaded_file($_FILES[$this->inputName]['tmp_name'],$this->saveDir."/".$file_newname);    if($result){      $path = $this->savePath = $this->saveDir.$file_newname;    //檔案的成功儲存路徑      return $path;    }else{      $this->chk_err($_FILES[$this->inputName]['error']);    }    }  //判斷出錯資訊  function chk_err($errID){    $this->errID = $errID;    switch($this->errID){      case -4:        $this->errMsg = "上傳的檔案過大";        break;      case -3:        $this->errMsg = "上傳的檔案類型不被允許";        break;      case -2:        $this->errMsg = "檔案上傳不合法";        break;      case -1:        $this->errMsg = "無控制項名傳入";        break;      case 1:        $this->errMsg = '上傳的檔案超出了php.ini中upload_max_filesize設定的最大值';        break;      case 2:        $this->errMsg = '上傳檔案的大小超過了HTML表單中MAX_FILE_SIZE選項指定的值';        break;      case 3:        $this->errMsg = '檔案只有部分被上傳';        break;      case 4:        $this->errMsg = '沒有檔案被上傳';        break;      default:        break;    }    return false;    }  function get_errMsg(){    echo $this->errMsg; //輸出錯誤資訊  }  /**   +----------------------------------------------------------   * 取得映像資訊   *   +----------------------------------------------------------   * @static   * @access public   +----------------------------------------------------------   * @param string $image 影像檔名   +----------------------------------------------------------   * @return mixed   +----------------------------------------------------------   */  function getImageInfo($img) {    $imageInfo = getimagesize($img);    if( $imageInfo!== false) {      $imageType = strtolower(substr(image_type_to_extension($imageInfo[2]),1));      $imageSize = filesize($img);      $info = array(        "width"    =>$imageInfo[0],        "height"  =>$imageInfo[1],        "type"    =>$imageType,        "size"    =>$imageSize,        "mime"    =>$imageInfo['mime'],      );      return $info;    }else {      return false;    }  }  /**   +----------------------------------------------------------   * 產生縮圖   +----------------------------------------------------------   * @static   * @access public   +----------------------------------------------------------   * @param string $image 原圖   * @param string $type 映像格式   * @param string $thumbname 縮圖檔案名稱   * @param string $maxWidth 寬度   * @param string $maxHeight 高度   * @param string $position 縮圖儲存目錄   * @param boolean $interlace 啟用隔行掃描   * @param boolean $is_save 是否保留原圖   +----------------------------------------------------------   * @return void   +----------------------------------------------------------   */     function thumb($image,$is_save=true,$suofang=0,$type='',$maxWidth=500,$maxHeight=500,$interlace=true){    // 擷取原圖資訊    $info = $this->getImageInfo($image);     if($info !== false) {      $srcWidth = $info['width'];      $srcHeight = $info['height'];      $type = empty($type)?$info['type']:$type;      $type = strtolower($type);      $interlace = $interlace? 1:0;      unset($info);      if ($suofang==1) {        $width = $srcWidth;        $height = $srcHeight;      } else {        $scale = min($maxWidth/$srcWidth, $maxHeight/$srcHeight); // 計算縮放比例        if($scale>=1) {          // 超過原圖大小不再縮減          $width  = $srcWidth;          $height = $srcHeight;        }else{          // 縮圖尺寸          $width = (int)($srcWidth*$scale);  //147          $height = (int)($srcHeight*$scale);  //199        }      }      // 載入原圖      $createFun = 'ImageCreateFrom'.($type=='jpg'?'jpeg':$type);      $srcImg   = $createFun($image);      //建立縮圖      if($type!='gif' && function_exists('imagecreatetruecolor'))        $thumbImg = imagecreatetruecolor($width, $height);      else        $thumbImg = imagecreate($width, $height);      // 複製圖片      if(function_exists("ImageCopyResampled"))        imagecopyresampled($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth,$srcHeight);      else        imagecopyresized($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth,$srcHeight);      if('gif'==$type || 'png'==$type) {        //imagealphablending($thumbImg, false);//取消預設的混色模式        //imagesavealpha($thumbImg,true);//設定儲存完整的 Alpha 色板資訊        $background_color = imagecolorallocate($thumbImg, 0,255,0); // 指派一個綠色        imagecolortransparent($thumbImg,$background_color); // 設定為透明色，若注釋掉該行則輸出綠色的圖      }      // 對jpeg圖形設定隔行掃描      if('jpg'==$type || 'jpeg'==$type)   imageinterlace($thumbImg,$interlace);      //$gray=ImageColorAllocate($thumbImg,255,0,0);      //ImageString($thumbImg,2,5,5,"ThinkPHP",$gray);      // 產生圖片      $imageFun = 'image'.($type=='jpg'?'jpeg':$type);       $length = strlen("00.".$type) * (-1);      $_type = substr($image,-4);      $length = ($type != $_type ? $length+1 : $length);      //裁剪      if ($suofang==1) {                $thumbname01 = substr_replace($image,"01.".$type,$length);    //大頭像        $thumbname02 = substr_replace($image,"02.".$type,$length);    //小頭像        $imageFun($thumbImg,$thumbname01,100);        $imageFun($thumbImg,$thumbname02,100);        $thumbImg01 = imagecreatetruecolor(190,195);        imagecopyresampled($thumbImg01,$thumbImg,0,0,$_POST['x'],$_POST['y'],190,195,$_POST['w'],$_POST['h']);        $thumbImg02 = imagecreatetruecolor(48,48);        imagecopyresampled($thumbImg02,$thumbImg,0,0,$_POST['x'],$_POST['y'],48,48,$_POST['w'],$_POST['h']);        $imageFun($thumbImg01,$thumbname01,100);        $imageFun($thumbImg02,$thumbname02,100);//        unlink($image);        imagedestroy($thumbImg01);        imagedestroy($thumbImg02);        imagedestroy($thumbImg);        imagedestroy($srcImg);        return array('big' => $thumbname01 , 'small' => $thumbname02);  //返回包含大小頭像路徑的數組      }else{        if($is_save == false){                      //縮圖覆蓋原圖，縮圖的路徑還是原圖路徑          $imageFun($thumbImg,$image,100);        }else{          $thumbname03 = substr_replace($image,"03.".$type,$length);  //縮圖與原圖同時存在，          $imageFun($thumbImg,$thumbname03,100);          imagedestroy($thumbImg);          imagedestroy($srcImg);          return $thumbname03 ;          //返回縮圖的路徑，字串        }      }     }     return false;  }}

以上就是本文的全部內容，希望對大家學習php程式設計有所協助。

http://www.bkjia.com/PHPjc/1127895.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/1127895.htmlTechArticlephp簡單的上傳類分享，php上傳分享 本文執行個體為大家分享了php上傳類，供大家參考，具體內容如下 phpclass UploadFile{ var $inputName; //控制項名 var...

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