Submitting a multidimensional array with file input via POST with php

Question

I have a php form that has a known number of columns (ex. top product, price, quantity, file(file input)), but has an unknown number of rows, as users can add rows as they need.

I am using a multidimensional array:

name="prod[0][name]"
name="prod[0][qty]"
name="prod[0][file]"

on post I use

 if ( isset( $_POST['prod'] ) )
    {

        foreach ( $_POST['prod'] as $value )
        {
            //some code here
if (isset($_FILES[$value["file"]]["name"]) && 
    ($_FILES[$value["file"]]["size"] > 0) &&
    ($_FILES[$value["file"]]["error"]==0) &&
    $_FILES[$value["file"]]["name"] != "" )
  {
   //code of uploading file

 } 

    }

My problem is I can't get the file to be uploaded, I always get the error

$value["file"] is undefined

please help

jeroen · Accepted Answer · 2016-02-25 10:51:11Z

1

The error correctly states that there is no file key in your array at that level. Instead you should use the key from the foreach loop.

On the top of my head, it should be something like:

foreach ( $_POST['prod'] as $key => $value ) {
                            ^^^^ this will be your numeric index
    //some code here
    if (isset($_FILES['prod']['name'][$key]['file']) ...

But you'd better do a var_dump($_FILES['prod']); to confirm that as I am not sure how php handles multi-level file upload arrays.

answered Feb 25, 2016 at 10:51

jeroen

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Comments

Guy · Accepted Answer · 2016-02-25 10:53:15Z

0

Have you set the enctype attribute on the form element ?

<form ... enctype="multipart/form-data">
...
</form>

http://www.w3schools.com/tags/att_form_enctype.asp

answered Feb 25, 2016 at 10:53

Guy

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