1 questions about Strtok in PHP

A little doubt about Strtok in PHP
Take a look at the following code

PHP Code

  
  
  
  "; $token = Strtok ("");}? >

The condition of the loop termination should be $token = = = False, but Strtok returns a string type value, how can the two be = = =?
Known that the "= = = False is not established, that is, $token = = =" is not established, then the final value of $token what is it?

------Solution--------------------
PHP is a weakly typed language, so let's take a look at this example

$str = ";

$token =strtok ($str, ');

Var_dump ($token);

This time the return is bool (false)

Did you see it? So it is with!==false;

------Solution--------------------
Normally strtok does return a string, but after the last one is gone, the return value is not a string or null but a Boolean false, which is prescribed by the person writing the function.

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