&lt;?php$a = &quot;hello&quot;;if &#40;strlen&#40;$a&#41;&#41;    print strlen&#40;$a&#41;;else    print &quot;hi&quot;;?&gt;
A. hellolength
B. 5
C. hi
D. error
Answer:A
&lt;?php$a = &quot;hello&quot;;if &#40;strlen&#40;$a&#41;&#41;    print strlen&#40;$a&#41;;else    print &quot;hi&quot;;?&gt;
A. hellolength B. 5 C. hi D. error
Explanation: The function strlen($a) gives the length of the string,5, which is considered true.