&lt;?php$a = 1; $b = 1; $d = 1;print ++$a + ++$a+$a++; print $a++ + ++$b; print ++$d + $d++ + $a++;?&gt;
A. 869
B. 742
C. 368
D. error
Answer:A
&lt;?php$a = 1; $b = 1; $d = 1;print ++$a + ++$a+$a++; print $a++ + ++$b; print ++$d + $d++ + $a++;?&gt;
A. 869 B. 742 C. 368 D. error
Explanation: Follow the order of post and pre increments.