Question

Can somebody explain this ?

echo ceil( 20.7 * 100 ); // returns 2070
echo ceil( 2070 );       // returns 2070

all OK and logical, but

echo ceil( 40.7 * 100 ); // returns 4071
echo ceil( 4070 );       // returns 4070

not OK and not logical…

Why is this difference ?

Thanks

Answer 1

Floating point numbers issue… you can overcome your problem with something like this:

echo ceil( (int) (40.7 * 100) );