"; echo "

The difference with\$a++ and ++\$a

"; echo "(in a simply way and may be in unaccurate way)$newline"; echo "

Why \$b is 2 and not 3?

"; echo "

In a simplified way

"; echo "if you do \$b=\$a++ $newline is the same to do $newline \$b=\$a and then \$a=\$a+1 $newline"; echo "

the results

"; $a=2; echo "\$a=$a //at a var declaration $newline"; echo "\$b=\$a++ $newline$newline"; $b=$a++; echo "\$b=$b // after \$b=\$a++ $newline "; echo "\$a=$a // after \$b=\$a++ $newline"; echo "

How we could get 3 in \$b?

"; echo "

With ++\$a

"; echo "

In \$b=++\$a

You are doing $newline \$a=\$a+1 and then \$b=\$a $newline"; echo "

the results

"; $a=2; echo "\$a=$a //at a var declaration $newline"; echo "\$b=++\$a $newline$newline"; $b=++$a; echo "\$b=$b // after \$b=++\$a$newline "; echo "\$a=$a // after \$b=++\$a $newline"; ?>

a++ vs ++a php