A condition is a true/false value. You can use a condition in an if statement or a while statement. For simple datatypes like numbers you can test using operators such as
== Equal != Not Equal > Greater than < Less than >= Greater than or Equal to <= Less than or Equal to
PHP also has === and !== operators for testing whether two values are equal and has the same type. For PHP 5 objects, === and !== have another meaning; see the PHP manual for more details.