Body

The body, of a function or a command, is the related block that is commanded by the command. It is often enclosed in curly brackets {  }, as for function or switch, but sometimes optional, as for foreach or ifthen.

The body is omitted in a method, when the method is abstract. Since an abstract method is only its signature, the body is replaced by a semi colon ;.

<?php

abstract class X {
    function foo() {
        // This block is the body
    }

    // No body for an abstract method
    abstract function goo();
}

?>

Related : Block