== Why is this an issue?

include::../description.adoc[]


=== Noncompliant code example

[source,php]
----
// This can never match because $ and ^ have been switched around
preg_match("/$[a-z]+^/", $str); // Noncompliant
----


=== Compliant solution

[source,php]
----
preg_match("/^[a-z]+$/", $str);
----

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

include::../highlighting.adoc[]

'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]

endif::env-github,rspecator-view[]