#php #PHP/operators/comparison operators A comparison operator is an operator that compares two values. $a == $b Returns TRUE if $a equals $b. for example $a = 123; $b = 123; This is TRUE. Also $a = 123; $b = '123'; When is also TRUE. $a === $b Returns TRUE if $a and $b are the same and have the same data type. for example $a = 123; $b = 123; This is TRUE. but, $a = 123; $b = '123'; is FALSE. $a..