inform the type in the array displacement error message.

Author: marcosmarcolin

Zend/tests/036.phpt

@@ -11,4 +11,4 @@ try {
 
 ?>
 --EXPECT--
-Illegal offset type
+Illegal offset type: cannot be of type object

Zend/tests/assign_dim_obj_null_return.phpt

@@ -72,12 +72,12 @@ test();
 ?>
 --EXPECT--
 Cannot add element to the array as the next element is already occupied
-Illegal offset type
-Illegal offset type
+Illegal offset type: cannot be of type array
+Illegal offset type: cannot be of type object
 Cannot use a scalar value as an array
 Cannot add element to the array as the next element is already occupied
-Illegal offset type
-Illegal offset type
+Illegal offset type: cannot be of type array
+Illegal offset type: cannot be of type object
 Cannot use a scalar value as an array
 Attempt to assign property "foo" on true
 Attempt to assign property "foo" on true

Zend/tests/bug79790.phpt

@@ -8,7 +8,7 @@ function b($a = array()[array ()]) {
 }
 ?>
 --EXPECTF--
-Fatal error: Uncaught TypeError: Illegal offset type in %s:%d
+Fatal error: Uncaught TypeError: Illegal offset type: cannot be of type array in %s:%d
 Stack trace:
 #0 %s(%d): b()
 #1 {main}

Zend/tests/bug79947.phpt

@@ -12,6 +12,6 @@ try {
 var_dump($array);
 ?>
 --EXPECT--
-Illegal offset type
+Illegal offset type: cannot be of type array
 array(0) {
 }

Zend/tests/offset_array.phpt

@@ -30,6 +30,14 @@ try {
     echo $e->getMessage(), "\n";
 }
 
+try{
+    $k = [];
+    $arr = ['foo'];
+    $arr[$k];
+}catch (Error $e){
+    echo $e->getMessage(), "\n";
+}
+
 echo "Done\n";
 ?>
 --EXPECTF--
@@ -48,6 +56,7 @@ int(1)
 
 Warning: Resource ID#%d used as offset, casting to integer (%d) in %s on line %d
 int(%d)
-Illegal offset type
-Illegal offset type
+Illegal offset type: cannot be of type object
+Illegal offset type: cannot be of type array
+Illegal offset type: cannot be of type array
 Done

Zend/zend_execute.c

@@ -2313,6 +2313,12 @@ static zend_never_inline zend_uchar slow_index_convert(HashTable *ht, const zval
 		case IS_TRUE:
 			value->lval = 1;
 			return IS_LONG;
+		case IS_ARRAY:
+			zend_type_error("Illegal offset type: cannot be of type array");
+			return IS_ARRAY;
+		case IS_OBJECT:
+			 zend_type_error("Illegal offset type: cannot be of type object");
+			 return IS_OBJECT;
 		default:
 			zend_illegal_offset();
 			return IS_NULL;
@@ -2387,6 +2393,12 @@ static zend_never_inline zend_uchar slow_index_convert_w(HashTable *ht, const zv
 		case IS_TRUE:
 			value->lval = 1;
 			return IS_LONG;
+		case IS_ARRAY:
+			zend_type_error("Illegal offset type: cannot be of type array");
+			return IS_ARRAY;
+		case IS_OBJECT:
+        	 zend_type_error("Illegal offset type: cannot be of type object");
+        	 return IS_OBJECT;
 		default:
 			zend_illegal_offset();
 			return IS_NULL;