Intermediate site profile: 'foreach' combined with 'and'?

[Hans0L0]

Hi,

I'm new to Processwire and it's been quite a while since my last programming experiences with PHP.
Currently I'm trying to read through the different site profile versions and stumbled over some code construct in the '_main.php' of the intermediate profile which I've never seen before:

foreach($homepage->and($homepage->children) as $item)

To me, it looks like 'and()' is used as a method of object '$homepage' in this case but in combination with the 'foreach'-part I don't understand what exactly is happening here and why this is possible.

I hope that someone can explain it to me on a basic level :)

Thanks in advance

Hans

[dragan]

The second-last example explains it quite well:

// generate breadcrumb trail that includes current page
foreach($page->parents->and($page) as $item) {
  echo "<a href='$item->url'>$item->title</a> / ";
}

 

[Hans0L0]

Ok, thank you for the fast reply! :)

[bernhard]

welcome to the forum @Hans0L0

I've setup a custom search shortcut "api" in my browser so i can just type "api and" and will get this result:

You'll then get to the api docs quickly: https://processwire.com/api/ref/wirearray/and/

[Hans0L0]

Hi @bernhard, that's another good hint. Thanks for that! :)