&lt;?php$x;if &#40;$x&#41;    print &quot;hi&quot; ;else    print &quot;how are u&quot;;?&gt;
A. how are u
B. hi
C. Error
D. No output
Answer:A
&lt;?php$x;if &#40;$x&#41;    print &quot;hi&quot; ;else    print &quot;how are u&quot;;?&gt;
A. how are u B. hi C. Error D. No output
Explanation: Uninitialized x is set to 0, thus if condition fails .