Snippets: passing a variable by reference

[daizumi]

@pedroborges’s solution is even more elegant:

Global variable (when a function is not an option)

Filling the global scope with variables is considered a bad practice and could cause other issues. You can achieve what you want inside the page model you are already using: protected $hints = null; public function getHints() { if (! is_null($this->hints)) { return $this->hints; } return $this->hints = // generate hints } The first time you call the method getHints() it will store the result in the $hints property and return it on subsequent calls. If you need to modify…