- Fixed bug #27822 (is_resource() returns TRUE for closed resources)

2 files changed, 17 insertions, 0 deletions

diff --git a/ext/standard/tests/general_functions/is_resource.phpt b/ext/standard/tests/general_functions/is_resource.phpt
new file mode 100644
index 0000000000..d44461e442
--- /dev/null
+++ b/ext/standard/tests/general_functions/is_resource.phpt
@@ -0,0 +1,10 @@
+--TEST--
+Bug #27822: is_resource() returns TRUE for closed resources
+--FILE--
+<?php
+	$f = fopen(__FILE__, 'r');
+	fclose($f);
+	var_dump(is_resource($f));
+?>
+--EXPECT--
+bool(false)
diff --git a/ext/standard/type.c b/ext/standard/type.c
index 296353decd..3005df1dce 100644
--- a/ext/standard/type.c
+++ b/ext/standard/type.c
@@ -218,6 +218,13 @@ static void php_is_type(INTERNAL_FUNCTION_PARAMETERS, int type)
 				RETURN_FALSE;
 			}
 		}
+		if (type == IS_RESOURCE) {
+			char *type_name;
+			type_name = zend_rsrc_list_get_rsrc_type(Z_LVAL_PP(arg) TSRMLS_CC);
+			if (!type_name) {
+				RETURN_FALSE;
+			}
+		}
 		RETURN_TRUE;
 	} else {
 		RETURN_FALSE;