fixes to make the library compile for php 5.6 environments (problem discovered in issue #59)

3 files changed, 57 insertions, 5 deletions

diff --git a/src/argument.cpp b/src/argument.cpp
index 8690a5c..a2aa8d5 100644
--- a/src/argument.cpp
+++ b/src/argument.cpp
@@ -28,13 +28,32 @@ Argument::Argument(const char *name, Type type, bool required, bool byref)
     // fill members
     _info->name = name;
     _info->name_len = strlen(name);
-#if PHP_VERSION_ID >= 50400    
+
+#if PHP_VERSION_ID >= 50400
+
+    // since php 5.4 there is a type-hint
     _info->type_hint = (unsigned char)(type == Type::Array || type == Type::Callable ? type : Type::Null);
+
+# if PHP_VERSION_ID >= 50600
+
+    // from PHP 5.6 and onwards, an is_variadic property can be set, this 
+    // specifies whether this argument is the first argument that specifies
+    // the type for a variable length list of arguments. For now we only
+    // support methods and functions with a fixed number of arguments.
+    _info->is_variadic = false;
+
+# endif
+
 #else
+
+    // php 5.3 code
     _info->array_type_hint = type == Type::Array;
     _info->return_reference = false;
     _info->required_num_args = 0;   // @todo is this correct?
+
 #endif
+
+    // this parameter is a regular type
     _info->class_name = NULL;
     _info->class_name_len = 0;
     _info->allow_null = false;
@@ -60,9 +79,32 @@ Argument::Argument(const char *name, const char *classname, bool nullable, bool
     // fill members
     _info->name = name;
     _info->name_len = strlen(name);
-#if PHP_VERSION_ID >= 50400    
+
+#if PHP_VERSION_ID >= 50400
+
+    // since php 5.4 there is a type hint
     _info->type_hint = (unsigned char)Type::Object;
+
+# if PHP_VERSION_ID >= 50600
+
+    // from PHP 5.6 and onwards, an is_variadic property can be set, this 
+    // specifies whether this argument is the first argument that specifies
+    // the type for a variable length list of arguments. For now we only
+    // support methods and functions with a fixed number of arguments.
+    _info->is_variadic = false;
+
+# endif
+
+#else
+    
+    // php 5.3 code
+    _info->array_type_hint = false;
+    _info->return_reference = false;
+    _info->required_num_args = 0;   // @todo is this correct?
+
 #endif
+
+    // the parameter is a class
     _info->class_name = classname;
     _info->class_name_len = strlen(classname);
     _info->allow_null = nullable;
diff --git a/src/callable.cpp b/src/callable.cpp
index 55f2833..5e37df7 100644
--- a/src/callable.cpp
+++ b/src/callable.cpp
@@ -99,8 +99,18 @@ void Callable::initialize(zend_arg_info *info, const char *classname) const
     // we do not support return-by-reference
     finfo->return_reference = false;
  
-    // passing by reference is not used
+# if PHP_VERSION_ID >= 50600
+    // since php 5.6 there are _allow_null and _is_variadic properties. It's
+    // not exactly clear what they do (@todo find this out) so for now we set
+    // them to false
+    finfo->_allow_null = false;
+    finfo->_is_variadic = false;
+
+# else
+    // passing by reference is not used (only for php 5.4 and php 5.5)
     finfo->pass_rest_by_reference = false;
+# endif
+
 #else
     // php 5.3 code
     info->name = nullptr;
diff --git a/src/iterator.cpp b/src/iterator.cpp
index 6242440..0362fb1 100644
--- a/src/iterator.cpp
+++ b/src/iterator.cpp
@@ -83,10 +83,10 @@ void Iterator::key(zend_object_iterator *iter, zval *key TSRMLS_DC)
     Value retval(iterator->key());
 
     // detach the underlying zval
-    zval *zval = retval.detach();
+    zval *val = retval.detach();
     
     // copy it to the key
-    ZVAL_ZVAL(key, zval, 1, 1);
+    ZVAL_ZVAL(key, val, 1, 1);
 }
 
 /**