Results for your are most welcome translation from Korean to English

most welcome
you are welcome

a very common type of expressions are comparison expressions. these expressions evaluate to either 0 or 1, meaning false or true (respectively). php supports (bigger than), = (bigger than or equal to), == (equal), != (not equal), (smaller than) and = (smaller than or equal to). these expressions are most commonly used inside conditional execution, such as if statements.
post-increment, which is written '$variable++' evaluates to the original value of $variable, before it was incremented (php increments the variable after reading its value, thus the name'post-increment').