From: Sterling Hughes <sterling@php.net>
Date: Wed, 29 Nov 2000 15:37:38 +0000 (+0000)
Subject: @ Added the is_null() function that will return true if a variable is of
X-Git-Tag: php-4.0.4RC3~30
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2cc8e2f8c79b4ca00c2e4ef953c12ea1ef6588d4;p=php

@ Added the is_null() function that will return true if a variable is of
@ type null. (Sterling)
---

diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index ca00d8abed..dbb6e7cb54 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -309,6 +309,7 @@ function_entry basic_functions[] = {
 	PHP_FE(get_magic_quotes_gpc,					NULL)
 	PHP_FE(get_magic_quotes_runtime,				NULL)
 	
+	PHP_FE(is_null,                                 first_arg_allow_ref)
 	PHP_FE(is_resource,								first_arg_allow_ref)
 	PHP_FE(is_bool,									first_arg_allow_ref)
 	PHP_FE(is_long,									first_arg_allow_ref)
@@ -1306,6 +1307,14 @@ void php_is_type(INTERNAL_FUNCTION_PARAMETERS,int type)
 	}
 }
 
+/* {{{ proto bool is_null(mixed var)
+   Returns true if variable is null */
+PHP_FUNCTION(is_null)
+{
+    php_is_type(INTERNAL_FUNCTION_PARAM_PASSTHRU, IS_NULL);
+}
+/* }}} */
+
 /* {{{ proto bool is_resource(mixed var)
    Returns true if variable is a resource */ 
 PHP_FUNCTION(is_resource) 
diff --git a/ext/standard/basic_functions.h b/ext/standard/basic_functions.h
index b164ec1ec1..07c9cdc49c 100644
--- a/ext/standard/basic_functions.h
+++ b/ext/standard/basic_functions.h
@@ -67,6 +67,7 @@ PHP_FUNCTION(get_magic_quotes_runtime);
 PHP_FUNCTION(get_magic_quotes_gpc);
 
 void php_is_type(INTERNAL_FUNCTION_PARAMETERS, int type);
+PHP_FUNCTION(is_null);
 PHP_FUNCTION(is_resource);
 PHP_FUNCTION(is_bool);
 PHP_FUNCTION(is_long);