&lt;?php$var1 = 1 + ++5;echo $var1; ?&gt;
A. no output
B. error
C. 6
D. 7
Answer:A
&lt;?php$var1 = 1 + ++5;echo $var1; ?&gt;
A. no output B. error C. 6 D. 7
Explanation: Operator ++ can be done only on variables.