isCallable now works

2 files changed, 13 insertions, 8 deletions

diff --git a/Examples/CallPhpFunctions/callphpfunction.cpp b/Examples/CallPhpFunctions/callphpfunction.cpp
index db443ea..8f212f8 100644
--- a/Examples/CallPhpFunctions/callphpfunction.cpp
+++ b/Examples/CallPhpFunctions/callphpfunction.cpp
@@ -24,8 +24,10 @@ using namespace std;
  */
 Php::Value call_php_function(Php::Parameters &params)
 {
-	//if (!params[0].isCallable()) throw Php::Exception("Not a callable type.");
-	
+	// check whether the parameter is callable
+	if (!params[0].isCallable()) throw Php::Exception("Not a callable type.");
+		
+	// perform the callback
 	return params[0](1,2,3);
 }
 
@@ -41,7 +43,8 @@ extern "C"
         
         // add function to extension
         extension.add("call_php_function", call_php_function, {
-			Php::ByVal("addFunc", Php::callableType)
+			Php::ByVal("addFunc", Php::callableType),
+			Php::ByVal("x", Php::numericType)
 			});
 		
 		// return the extension module
diff --git a/Examples/CallPhpFunctions/callphpfunction.php b/Examples/CallPhpFunctions/callphpfunction.php
index 26f161c..ae3cf81 100644
--- a/Examples/CallPhpFunctions/callphpfunction.php
+++ b/Examples/CallPhpFunctions/callphpfunction.php
@@ -6,11 +6,13 @@
  * 	An example file to show the working of a php function call in C++.
  */
 
-/*
- *	Run the function with the given name. As you can see, the given name 
- * 	can be different from the actual function name.
+/**
+ * 	Call a C++ function with a callable PHP function as its parameter.
+ * 	The PHP function is then executed from the C++ code.
+ * 	The PHP function is this case, adds three numbers.
  */
 $result = call_php_function(function($a, $b, $c){
-							return $a + $b + $c;
+								return $a + $b + $c;
 							});
-echo $result;
+// print the result
+echo $result . "\n";