From 74c7eb772384faf2e0c78e62f24f78fd875bf757 Mon Sep 17 00:00:00 2001
From: Derick Rethans <derick@php.net>
Date: Mon, 26 Sep 2005 18:38:49 +0000
Subject: [PATCH] - Implemented callback filter.

---
 ext/filter/callback_filter.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/ext/filter/callback_filter.c b/ext/filter/callback_filter.c
index df0cb05a41..79ed4f5b51 100644
--- a/ext/filter/callback_filter.c
+++ b/ext/filter/callback_filter.c
@@ -20,4 +20,17 @@
 
 void php_filter_callback(PHP_INPUT_FILTER_PARAM_DECL)
 {
+	char *name;
+	zval *args[1];
+	
+	if (!zend_is_callable(option_array, IS_CALLABLE_CHECK_NO_ACCESS, &name)) {
+		php_error_docref1(NULL TSRMLS_CC, name, E_WARNING, "First argument is expected to be a valid callback");
+		efree(name);
+		Z_TYPE_P(value) = IS_NULL;
+		return;
+	}
+
+	args[0] = value;
+
+	call_user_function(EG(function_table), NULL, option_array, value, 1, args TSRMLS_CC);
 }
-- 
2.50.1