Laravel differences linux and windows hosting - laravel

Question

This is very strange: On Windows these functions with exactly the same databases works greats, but when I upload the project to Linux the pageinfo() function returns null. Of course the first thing I thought was that this has to do with case sensitivity, but all seems well formatted...
In my Page Model:
public function pageinfo() {
return $this->hasMany('App\Models\PageToElement', 'page_id');
}
(The Model PageToElement is exactly called like this)
In my controller:
$this->info = Page::find($page->page_id);
$meta = $this->info->pageinfo->where('element_id', 1)->first();
On Windows this nicely returns array:
App\Models\PageToElement Object (
[attributes:protected] => Array(
[id] => 1
[page_id] => 1
[element_id] => 1
[element_parent_id] => 0
[parent_id] => 0
[sorting] => 0
[is_active] => 1
[created_at] => 2015-12-07 10:00:03
[updated_at] => 2015-12-07 10:00:03
)
)
But on Linux, the response is null
What am I overlooking?
After some research, I came to the conclusion that $meta = $this->page->pageinfo->where('element_id', 1)->first(); returns null on the Linux server. But when I do $meta = $this->page->pageinfo; I do get more than one item in return. When I then do $meta = $this->page->pageinfo->first(); it returns one. So I think somehow the where('element_id', 1) is not working for Linux.
But what do you know, $meta = $this->page->pageinfo->where('element_id', '1')->first(); works! element_id is an integer, so why does it need quotes???

Answer 1

But what do you know, $meta = $this->page->pageinfo->where('element_id', '1')->first(); works! But then again not on Windows.
So I wounded up adding an extra line $id = 1; and parsing that in the query.
Strange workaround though