Description:
------------
soap/php_encoding.c has this code in unset_zval_property():

                zval member;
                zend_class_entry *old_scope;

                INIT_PZVAL(&member);
                ZVAL_STRING(&member, name, 0);
                old_scope = EG(scope);
                EG(scope) = Z_OBJCE_P(object);
                Z_OBJ_HT_P(object)->unset_property(object, &member, 0 TSRMLS_CC);

However, since 5.4 the signature of unset_property is:

void (*zend_object_unset_property_t)(zval *object, zval *member, const struct _zend_literal *key TSRMLS_DC);

So this code needs to be updated.