can someone explain this!!

Question

https://code.sololearn.com/wN4C2M61v3dw/?ref=app

Answer 1

PHP converts automatically numbers inside strings, as numbers!

1e3 = 1000 ('e' is basically the number of zero)

The expression will be:

if(1000==1000)
echo "wow";
else
echo "nop";

... since 1000 is equal to 1000, the condition will be true!

Answer 2

"1e3" is the exponent form of 1000, that is 1*10^3 = 1000.
So the condition evaluates to true and prints "wow".

Answer 3

thanks bro👍