PHP NodeInterface::appendChild Examples

Example #1

File: Leaf.php Project: talesoft/tale-tree

 /**
  * @param NodeInterface $parent
  *
  * @return $this
  */
 public function setParent(NodeInterface $parent = null)
 {
     if ($this->parent === $parent) {
         return $this;
     }
     if ($parent !== null && $this->parent && $this->parent->hasChild($this)) {
         $this->parent->removeChild($this);
         return $this;
     }
     $this->parent = $parent;
     if ($parent !== null && !$parent->hasChild($this)) {
         $parent->appendChild($this);
     }
     return $this;
 }