== Why is this an issue? include::../description.adoc[] === Noncompliant code example [source,php] ---- class FruitException { // Noncompliant; this has nothing to do with Exception private $expected; private $unusualCharacteristics; private $appropriateForCommercialExploitation; // ... } class CarException { // Noncompliant; the extends clause was forgotten? public function __construct(string message, Throwable cause) { // ... ---- === Compliant solution [source,php] ---- class FruitSport { private $expected; private $unusualCharacteristics; private $appropriateForCommercialExploitation; // ... } class CarException extends Exception { public function __construct(string message, Throwable cause) { // ... ---- ifdef::env-github,rspecator-view[] ''' == Implementation Specification (visible only on this page) include::../message.adoc[] ''' == Comments And Links (visible only on this page) include::../comments-and-links.adoc[] endif::env-github,rspecator-view[]