Getting the first child in a loop

[caribou]

Edit: Never mind. Simple typo on the equal signs. Carry on!

Hello! I am trying to use $child->first() inside a loop, but I get the error "Error:Call to a member function first() on a non-object" Any pointer on what I'm doing wrong? Thanks!

foreach($page->children->find("sort=-markerdate") as $child) {
	$current = $child->first();
	if($child = $current){
		$icon = $child->parent->icon->url;
	}else{
		if ($child->icon != ""){
			$icon = $child->icon->url;
		}else{
			$icon = "image.png";
		}
	}
}