Please help me anyone

I have a existing code capture only one image from camera and gallery but i want to get multiple images gallery
Below my code please help me any one


 public presentActionSheet() {
    let actionSheet = this.actionSheetCtrl.create({
      title: 'Select Image Source',
      buttons: [
        {
          text: 'Load from Gallery',
          handler: () => {
            this.takePicture(this.camera.PictureSourceType.PHOTOLIBRARY);
          }
        },
        {
          text: 'Use Camera',
          handler: () => {
            this.takePicture(this.camera.PictureSourceType.CAMERA);
          }
        },
        {
          text: 'Cancel',
          role: 'cancel'
        }
      ]
    });
    actionSheet.present();
  }
  
 public takePicture(sourceType) {
  // Create options for the Camera Dialog
  var options = {
    quality: 100,
    sourceType: sourceType,
    saveToPhotoAlbum: true,
    correctOrientation: true
  };
 
  // Get the data of an image
  this.camera.getPicture(options).then((imagePath) => {
    // Special handling for Android library
    if (this.platform.is('android') && sourceType === this.camera.PictureSourceType.PHOTOLIBRARY) {
      this.filePath.resolveNativePath(imagePath)
        .then(filePath => {
          let correctPath = filePath.substr(0, filePath.lastIndexOf('/') + 1);
          let currentName = imagePath.substring(imagePath.lastIndexOf('/') + 1, imagePath.lastIndexOf('?'));
          this.copyFileToLocalDir(correctPath, currentName, this.createFileName());
        });
    } else {
      var currentName = imagePath.substr(imagePath.lastIndexOf('/') + 1);
      var correctPath = imagePath.substr(0, imagePath.lastIndexOf('/') + 1);
      this.copyFileToLocalDir(correctPath, currentName, this.createFileName());
    }
  }, (err) => {
    this.presentToast('Error while selecting image.');
  });
}


// Create a new name for the image
private createFileName() {
  var d = new Date(),
  n = d.getTime(),
  newFileName =  n + ".jpg";
  return newFileName;
}
 
// Copy the image to a local folder
private copyFileToLocalDir(namePath, currentName, newFileName) {
  this.file.copyFile(namePath, currentName, cordova.file.dataDirectory, newFileName).then(success => {
    this.lastImage = newFileName;
  }, error => {
    this.presentToast('Error while storing file.');
  });
}
 
private presentToast(text) {
  let toast = this.toastCtrl.create({
    message: text,
    duration: 3000,
    position: 'bottom'
  });
  toast.present();
}
 
// Always get the accurate path to your apps folder
public pathForImage(img) {
  if (img === null) {
    return '';
  } else {
    return cordova.file.dataDirectory + img;
  }
}
//------------------------------------- end Take Photo ---------------------------------------------------  

//------------------------------------- Start Register ---------------------------------------------------  
  public submitAdd() {

  var url = "http://mydomain.com/rental_app/append/includes/classes/serviceRequest.php";
  // File for Upload
  var targetPath = this.pathForImage(this.lastImage);
  // File name only
  var filename = this.lastImage;
      
  var options = {
    fileKey: "file",
    fileName: filename,
    chunkedMode: false,
    mimeType: "multipart/form-data",
    params : {

      "fileName": filename,
      }
  };
 
  const fileTransfer: FileTransferObject = this.transfer.create();
 
  this.loading = this.loadingCtrl.create({
    content: 'Uploading...',
  });
  this.loading.present();
 
  // Use the FileTransfer to upload the image
  fileTransfer.upload(targetPath, url, options).then(data => {
    this.loading.dismissAll()
    this.presentToast('You service request successfully submitted!');
    //this.filename=" ";
    this.lastImage="";
    this.message="";
    this.categorey="";

  //this.navCtrl.setRoot(HomePage);
    filename="";
  }, err => {
    this.loading.dismissAll()
    this.presentToast('Something worng. \n Try again!');
  });
}

File transfer only supports one file to be uploaded at once.
You may try

Select a file: <input type="file" name="img">

https://www.w3schools.com/tags/att_input_type.asp