[BUG][PHP] Parameter property style not fully implemented (related to PR4042) (#4640)

Author: thomasphansen

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

@@ -174,6 +174,7 @@ public CodegenParameter copy() {
         output.isListContainer = this.isListContainer;
         output.isMapContainer = this.isMapContainer;
         output.isExplode = this.isExplode;
+        output.style = this.style;
 
         return output;
     }
@@ -249,7 +250,8 @@ public boolean equals(Object o) {
             Objects.equals(minItems, that.minItems) &&
             Objects.equals(uniqueItems, that.uniqueItems) &&
             Objects.equals(multipleOf, that.multipleOf) &&
-            Objects.equals(isExplode, that.isExplode);
+            Objects.equals(isExplode, that.isExplode) &&
+            Objects.equals(style, that.style);
     }
 
     @Override
@@ -319,7 +321,8 @@ public int hashCode() {
             minItems,
             uniqueItems,
             multipleOf,
-            isExplode);
+            isExplode,
+            style);
     }
 
     @java.lang.Override
@@ -390,6 +393,7 @@ public java.lang.String toString() {
                 ", uniqueItems=" + uniqueItems +
                 ", multipleOf=" + multipleOf +
                 ", isExplode=" + isExplode +
+                ", style='" + style + '\'' +
                 '}';
     }
 }