&lt;?php$a = &quot;1&quot;;$b = &quot;0&quot;;if &#40;&#40;int&#41;$a &amp;&amp; $b&#41;     print&quot;hi&quot;;else     print &quot;hello&quot;;?&gt;
A. hello
B. no output
C. hi
D. error
Answer:A
&lt;?php$a = &quot;1&quot;;$b = &quot;0&quot;;if &#40;&#40;int&#41;$a &amp;&amp; $b&#41;     print&quot;hi&quot;;else     print &quot;hello&quot;;?&gt;
A. hello B. no output C. hi D. error
Explanation: The expression is evaluated with values contained in the string, even without typecasting.