How to Handle Multiple File Upload Using PHP

Multiple File Upload with PHP

Replace input file name like files[] not like files see following form example:

<form action="" method="post" enctype="multipart/form-data">
    <input type="file" id="file" name="files[]" multiple="multiple" accept="image/*" />
    <input type="submit" value="Upload!" />
</form>

How to handle multiple file upload using PHP

See: $_FILES, Handling file uploads

<?php
    if(isset($_FILES['file']['tmp_name']))
    {
        // Number of uploaded files
        $num_files = count($_FILES['file']['tmp_name']);

        /** loop through the array of files ***/
        for($i=0; $i < $num_files;$i++)
        {
            // check if there is a file in the array
            if(!is_uploaded_file($_FILES['file']['tmp_name'][$i]))
            {
                $messages[] = 'No file uploaded';
            }
            else
            {
                // copy the file to the specified dir 
                if(@copy($_FILES['file']['tmp_name'][$i],$upload_dir.'/'.$_FILES['file']['name'][$i]))
                {
                    /*** give praise and thanks to the php gods ***/
                    $messages[] = $_FILES['file']['name'][$i].' uploaded';
                }
                else
                {
                    /*** an error message ***/
                    $messages[] = 'Uploading '.$_FILES['file']['name'][$i].' Failed';
                }
            }
        }
    }
?>

Multiple Image Upload PHP form with one input

$error=array();
$extension=array("jpeg","jpg","png","gif");
foreach($_FILES["files"]["tmp_name"] as $key=>$tmp_name) {
    $file_name=$_FILES["files"]["name"][$key];
    $file_tmp=$_FILES["files"]["tmp_name"][$key];
    $ext=pathinfo($file_name,PATHINFO_EXTENSION);

    if(in_array($ext,$extension)) {
        if(!file_exists("photo_gallery/".$txtGalleryName."/".$file_name)) {
            move_uploaded_file($file_tmp=$_FILES["files"]["tmp_name"][$key],"photo_gallery/".$txtGalleryName."/".$file_name);
        }
        else {
            $filename=basename($file_name,$ext);
            $newFileName=$filename.time().".".$ext;
            move_uploaded_file($file_tmp=$_FILES["files"]["tmp_name"][$key],"photo_gallery/".$txtGalleryName."/".$newFileName);
        }
    }
    else {
        array_push($error,"$file_name, ");
    }
}

and you must check your HTML code

<form action="create_photo_gallery.php" method="post" enctype="multipart/form-data">
    <table width="100%">
        <tr>
            <td>Select Photo (one or multiple):</td>
            <td><input type="file" name="files[]" multiple/></td>
        </tr>
        <tr>
            <td colspan="2" align="center">Note: Supported image format: .jpeg, .jpg, .png, .gif</td>
        </tr>
        <tr>
            <td colspan="2" align="center"><input type="submit" value="Create Gallery" id="selectedButton"/></td>
        </tr>
    </table>
</form>

Nice link on:

PHP Single File Uploading with vary basic explanation.

PHP file uploading with the Validation

PHP Multiple Files Upload With Validation Click here to download source code

PHP/jQuery Multiple Files Upload With The ProgressBar And Validation (Click here to download source code)

How To Upload Files In PHP And Store In MySql Database (Click here to download source code)

Upload multiple files using PHP

To allow multiple file uplodes you need to set attribute multiple="multiple" on the file input with a name file[]. Or you can use separate inputs with a name file[] as well. Than to store values in database make a

 foreach($_FILES['filename']['name'] as $key=>$name){
     // store each file and write data to DB for each file
     //for example to get the name of file
     $name = $_FILES['filename']['name'][$key];
 }

Upload Multiple Files In PHP

PHP

foreach($_FILES['image']['name'] as $i => $name)
{
    // now $name holds the original file name
    $tmp_name = $_FILES['image']['tmp_name'][$i];
    $error = $_FILES['image']['error'][$i];
    $size = $_FILES['image']['size'][$i];
    $type = $_FILES['image']['type'][$i];

    if($error === UPLOAD_ERR_OK)
    {
        $extension = getExtension($name);
        if( ! in_array(strtolower($extension, array('jpg', 'jpeg', 'png') )
        {
            // Error, invalid extension detected
        }
        else if ($size > $maxAllowedFileSize /* needs to be defined elsewhere */)
        {
            // Error, file too large
        }
        else
        {
            // No errors
            $newFileName = 'foo'; // You'll probably want something unique for each file.
            if(move_uploaded_file($tmp_file, $newFileName))
            {
                // Uploaded file successfully moved to new location
                $thumbName = 'thumb_image_name';
                $thumb = make_thumb($newFileName, $thumbName, WIDTH, HEIGHT);
            }
        }
    }
}

HTML

<form method="post" enctype="multipart/form-data">
    <input name="image[]" type="file" class="image-upload" />
    <input name="image[]" type="file" class="image-upload" />
    <input name="image[]" type="file" class="image-upload" />
    <input name="image[]" type="file" class="image-upload" />
    <input name="image[]" type="file" class="image-upload" />

    <!-- You need to add more, including a submit button -->
</form>

Note the name of the input elements. The [] at the end cause PHP to create an array and add the items to the array.

Can't Upload Multiple Files to the Server using PHP

Ok so I haven't tested your PHP process but from looking at your code you should be able to fix your issue by changing the field name from file to file[] see below.

<form action="test.php" method="post" enctype="multipart/form-data">
    <input name="file[]" id="file" type="file" multiple="multiple" />
    <input type="submit" value="submit" id="submit"/>
</form>

Adding the square brackets basically treats the field as an array which will accept multiple files.

You're also using + to combine strings in your PHP, these should be . instead...

    echo $fileName . "<br>";
    echo $fileType . "<br>";
    echo $fileActualExt . "<br>";
    echo "You can't upload files of this type!";

Upload multiple files to server side with php from dart

Thanks for the answer @CBroe. It works. I added the recent codes down.

.dart

  Future<http.Response> uploadFile(String fileName, List<int> fileBytes) async {
try {
  var request = new http.MultipartRequest("POST", Uri.parse("https://****/***/fileupload.php"));

  for (var i = 0; i < uploadedImage.length; i++) {
    selectedFilesBytes = List.from(uploadedImage[i]);
    request.files.add(http.MultipartFile.fromBytes('file[]', selectedFilesBytes, contentType: MediaType('application', 'octet-stream'), filename: files[i].name));
  }

  print("request.files.length");
  print(request.files.length);
  var streamedResponse = await request.send();

  return await http.Response.fromStream(streamedResponse);
} catch (e) {
  print(e);
}

.php

<?php 

 // Count total files
 $countfiles = count($_FILES['file']['name']);
 error_log($countfiles);
 // Looping all files
 for($i=0;$i<$countfiles;$i++){
   $filename = $_FILES['file']['name'][$i];
   
   // Upload file
   move_uploaded_file($_FILES['file']['tmp_name'][$i],'upload/'.$filename);
    
 }

?>

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