[PHP] Update php.md - marked Multiserver as true (OpenAPITools#18545)

* Update php.md - marked Multiserver as true

Mulitiserver support was fully implemented 2 years ago, on PR OpenAPITools#12982

* update php feature

* update

---------

Co-authored-by: Thomas Hansen <thomasphansen@users.noreply.github.com>

Author: wing328

bin/configs/java-jersey2-special-characters.yaml

@@ -10,6 +10,4 @@ additionalProperties:
   dateLibrary: java8
   useOneOfDiscriminatorLookup: true
   disallowAdditionalPropertiesIfNotPresent: false
-systemProperties:
-  skipValidateSpec: "false"
-
+validateSpec: false

docs/generators/php.md

@@ -219,7 +219,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |ExternalDocumentation|✓|OAS2,OAS3
 |Examples|✓|OAS2,OAS3
 |XMLStructureDefinitions|✗|OAS2,OAS3
-|MultiServer|✗|OAS3
+|MultiServer|✓|OAS3
 |ParameterizedServer|✗|OAS3
 |ParameterStyling|✗|OAS3
 |Callbacks|✗|OAS3

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpClientCodegen.java

@@ -44,6 +44,7 @@ public PhpClientCodegen() {
         modifyFeatureSet(features -> features
                 .includeDocumentationFeatures(DocumentationFeature.Readme)
                 .wireFormatFeatures(EnumSet.of(WireFormatFeature.JSON, WireFormatFeature.XML))
+                .includeGlobalFeatures(GlobalFeature.MultiServer)
                 .securityFeatures(EnumSet.of(
                         SecurityFeature.BasicAuth,
                         SecurityFeature.BearerToken,