&lt;?php$a = 10;echo ++$a;echo $a++;echo $a;echo ++$a;?&gt;
A. 11111213
B. 11121213
C. 11111212
D. 11111112
Answer:A
&lt;?php$a = 10;echo ++$a;echo $a++;echo $a;echo ++$a;?&gt;
A. 11111213 B. 11121213 C. 11111212 D. 11111112
Explanation: ++$a increments a and then prints it,$a++ prints and then increments.