Evaluate object to a boolean

Question

Consider the following:

class MyClass
{
  private $var1 = \"apple\";
  private $var2 = \"orange\";
}

$obj = new MyClass();

if($obj) { 
  // do this
}
else          


        

Answer 1

No, you can't. Unfortunately boolean casting in php is not modifiable, and an object will always return true when converted to a boolean.

Since you clearly have some logic you mean to place in that control statement, why not define a method on your object (say "isValid()" ) that checks the conditions you wish to check, and then replace:

if ($obj)

with:

if ($obj->isValid())