Laravel sorting empty input - php

Question

I am building a image upload in Laravel but I keep getting an error inside my foreach loop if one filed is empty.
My upload allows multible images[], so if one field is empty I get an error but I want to allow users to choose if they want to upload eg 2 or 5 images
$input = Input::all();
//Validation
File::exists($path) or File::makeDirectory($path);
foreach($input['images'] as $file) {
$image = Image::make($file->getRealPath()); //getRealPath gives me an error if not all images[] fields from post data containts an image
}
So how can I sort my input images[] from empty inputs?
Thanks in advance,

Answer 1

If I understood well you need something like this:
if(empty($file)) {
unset($file);
}
or something like this:
if(!empty($file)){
$image = Image::make($file->getRealPath());
}

Answer 2

Try checking whether $file has a non-null value before running getRealPath
File::exists($path) or File::makeDirectory($path);
foreach($input['images'] as $file) {
if($file) {
$image = Image::make($file->getRealPath());
}
}
By the way, $image is reset with every iteration. Is that really what you want? Do you care which $image you get?

Answer 3

You can use array_filter() with no callback to remove all elements that have a falsy value:
$input = array_filter($input);
foreach($input['images'] as $file) {
$image = Image::make($file->getRealPath());
}

Answer 4

What I did to solve it was to add if check within my foreach loop and it worked. But im not sure if this is the best solution?
$input = Input::all();
foreach($input['images'] as $file) {
if($file == ""){ //If one input is empty it jumps over it, instead of trying to use getRealPath() on an empty value
break;
}
$image = Image::make($file->getRealPath());
}