How to parse a string of boolean logic in PHP

Question

I\'m building a PHP class with a private member function that returns a string value such as:

\'true && true || false\'

to a public

Answer 1

Let's assume eval() is an ok/good solution in your case.

class Foo {
  private function trustworthy() {
    return 'true && true || false';
  }

  public function bar() {
    return eval('return '.$this->trustworthy().';');
  }
}

$foo = new Foo;
$r = $foo->bar();
var_dump($r);

prints bool(true)