&lt;?php$x = 1;if &#40;$x = $x&amp;0&#41;    print $x ;else    print &quot;how are u&quot;;?&gt;
A. 0
B. 1
C. error
D. how are u
Answer:A
&lt;?php$x = 1;if &#40;$x = $x&amp;0&#41;    print $x ;else    print &quot;how are u&quot;;?&gt;
A. 0 B. 1 C. error D. how are u
Explanation: x&0 is 0,thus evaluated to false.