Question

A

while( x < 100 ) {
if( x == 1 ) { echo "Hello World!" } else { echo "Bottles" }
x++;
}

B

while( x < 100 ) {
if( x != 1 ) { echo "Bottles" } else { echo "Hello World!"}
x++;
}

Would it really make a difference when having such a big loop?

Answer 1

It probably won’t make a difference.

I’d go with the second one, as it is more often that x != 1 than it will be that x == 1

This probably translates into super-tiny-1-thousandths-of-a-millisecond performance increase, but micro-optimization isn’t that important.