== Why is this an issue?

include::../description.adoc[]

To match a literal string, rather than a regular expression, either all special characters should be escaped or methods that don’t use regular expressions should be used.


=== Noncompliant code example

[source,php]
----
preg_match("/([/", $input);
preg_replace("/[/", "{", $input);
preg_replace("/(\\w+-(\\d+)/", "1234", $input);
----


=== Compliant solution

[source,php]
----
preg_match("/\\(\\[/", $input);
str_replace("([", "{", $input);
preg_replace("/(\\w+)-(\\d+)/", "1234", $input);
----

include::../rspecator.adoc[]