include::../why.adoc[]

=== Exceptions

This rule ignores initializations to `-1`, `0`, `1`, `null`, `true`, `false`, `""`, `[]` and `array()`.

include::../howtofixit.adoc[]

=== Code examples

==== Noncompliant code example

[source,php,diff-id=1,diff-type=noncompliant]
----
$i = $a + $b; // Noncompliant - calculation result is not used before value is overwritten
$i = compute();
----

==== Compliant solution

[source,php,diff-id=1,diff-type=compliant]
----
$i = $a + $b;
$i += compute();
----

include::../see.adoc[]

=== Related rules

* S1763 - All code should be reachable
* S3626 - Jump statements should not be redundant

* S1763 detects unreachable code
* S3626 identifies redundant jump statements

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[]