Error in PHP with bool arithmetic in loops -

It seems that there is an error in Boolean arithmetic loops in PHP.

In this particular example I test if all the important form fields (represented by the object) were set. var_dump is for debugging purposes.

  $ allset = true; Forex Currency ($ form as $ form): $ allset = $ one- & gt; Thats () and $ allset; Endforeach; Var_dump ($ allset); Foreign Currency ($ $ as $ more): $ allset = $ one- & gt; Thats () and $ allset; Endforeach; Var_dump ($ allset); $ Allset = $ iwasthere-> Thats () and $ allset; Var_dump ($ allset);   
 This code may fail, it is possible that the first dump returns false and the second return is correct.  
  My question   
 How can I save this error and I have a small and clean code?  
 
  PS   
 I now use the  if  block. The problem here is that  =  is operated by  and   
 
 operator, so assignment expression is just part of a logical expression and the whole expression is equivalent to:  
  ($ allset = $ one-> Thats ()) and $ Allset;   
 Either put a logical expression in parentheses or use  and  instead of  and :  
 < Code> $ allset = ($ one-> Thats () and $ AllSet); $ Allset = $ one- & gt; Thats () & amp; Amp; $ Allset;