fix Imagick::count() with PHP 5.6.0RC2

imagick.c

@@ -2708,6 +2708,19 @@ static void php_imagick_init_globals(zend_imagick_globals *imagick_globals)
 	imagick_globals->progress_monitor = 0;
 }
 
+#if defined(HAVE_SPL)
+static int php_imagick_count_elements(zval *object, long *count TSRMLS_DC) /* {{{ */
+	{
+	php_imagick_object *intern= (php_imagick_object *)zend_object_store_get_object(object TSRMLS_CC);
+
+	if (intern->magick_wand) {
+		*count = MagickGetNumberImages(intern->magick_wand);
+		return SUCCESS;
+	}
+	return FAILURE;
+	}
+#endif
+
 #if PHP_VERSION_ID < 50399
 static zval *php_imagick_read_property(zval *object, zval *member, int type TSRMLS_DC)
 #else
@@ -2935,6 +2948,7 @@ PHP_MINIT_FUNCTION(imagick)
 	imagick_object_handlers.read_property = php_imagick_read_property;
 	php_imagick_sc_entry = zend_register_internal_class(&ce TSRMLS_CC);
 #if defined(HAVE_SPL)
+	imagick_object_handlers.count_elements = php_imagick_count_elements;
 	zend_class_implements(php_imagick_sc_entry TSRMLS_CC, 2, zend_ce_iterator, spl_ce_Countable);
 #else
 	zend_class_implements(php_imagick_sc_entry TSRMLS_CC, 1, zend_ce_iterator);