diff --git a/modules/swagger-codegen/src/main/resources/php/Swagger.mustache b/modules/swagger-codegen/src/main/resources/php/Swagger.mustache
index d9da156c50d..090c78ca8a4 100644
--- a/modules/swagger-codegen/src/main/resources/php/Swagger.mustache
+++ b/modules/swagger-codegen/src/main/resources/php/Swagger.mustache
@@ -223,13 +223,14 @@ class APIClient {
       $inner = substr($class, 4, -1);
       $values = array();
       if(strrpos($inner, ",") !== false) {
-        $subClass = explode(',', $inner, 2)[1];
+        $subClass_array = explode(',', $inner, 2);
+        $subClass = $subClass_array[1];
         foreach ($data as $key => $value) {
           $values[] = array($key => self::deserialize($value, $subClass));
         }        
       }
       $deserialized = $values;
-    } elseif (substr($class, 0, 6) == 'array[') {
+    } elseif (strcasecmp(substr($class, 0, 6),'array[') == 0) {
       $subClass = substr($class, 6, -1);
       $values = array();
       foreach ($data as $key => $value) {
diff --git a/samples/client/petstore/php/Swagger.php b/samples/client/petstore/php/Swagger.php
index d797bb53e9e..b65add845c8 100644
--- a/samples/client/petstore/php/Swagger.php
+++ b/samples/client/petstore/php/Swagger.php
@@ -223,13 +223,14 @@ class APIClient {
       $inner = substr($class, 4, -1);
       $values = array();
       if(strrpos($inner, ",") !== false) {
-        $subClass = explode(',', $inner, 2)[1];
+        $subClass_array = explode(',', $inner, 2);
+        $subClass = $subClass_array[1];
         foreach ($data as $key => $value) {
           $values[] = array($key => self::deserialize($value, $subClass));
         }        
       }
       $deserialized = $values;
-    } elseif (substr($class, 0, 6) == 'array[') {
+    } elseif (strcasecmp(substr($class, 0, 6),'array[') == 0) {
       $subClass = substr($class, 6, -1);
       $values = array();
       foreach ($data as $key => $value) {