Updated README.md, implemented more complicated isCallable method and added comments to value.cpp

2 files changed, 33 insertions, 5 deletions

diff --git a/Examples/CallPhpFunctions/callphpfunction.php b/Examples/CallPhpFunctions/callphpfunction.php
index ae3cf81..77d633c 100644
--- a/Examples/CallPhpFunctions/callphpfunction.php
+++ b/Examples/CallPhpFunctions/callphpfunction.php
@@ -6,13 +6,28 @@
  * 	An example file to show the working of a php function call in C++.
  */
 
+class MyClass
+{
+	function method($a,$b,$c)
+	{
+		return $a+$b+$c;
+	}
+}
+
+function myFunction($a,$b,$c)
+{
+	return $a+$b+$c;
+}
+
 /**
  * 	Call a C++ function with a callable PHP function as its parameter.
  * 	The PHP function is then executed from the C++ code.
  * 	The PHP function is this case, adds three numbers.
  */
-$result = call_php_function(function($a, $b, $c){
+echo(call_php_function(function($a, $b, $c){
 								return $a + $b + $c;
-							});
-// print the result
-echo $result . "\n";
+							})."\n");
+							
+echo(call_php_function("myFunction")."\n");
+							
+echo(call_php_function(array(new MyClass(), 'method'))."\n");
diff --git a/Examples/README.md b/Examples/README.md
index ac66425..5bd9e1e 100644
--- a/Examples/README.md
+++ b/Examples/README.md
@@ -126,10 +126,23 @@ The following examples are available:
 	implemented. It would need to be implemented for this specific 
 	example to work.
 	
-	Functions and/or classes defined in this Example.
+	Functions and/or classes defined in this example.
 		- void my_catch_exception_function(Php::Parameters &params)
 		- void my_throw_exception_function()
 
 
+### [PHP function calls](https://github.com/EmielBruijntjes/PHP-CPP/tree/master/Examples/CallPhpFunctions)
+
+	The seventh example shows how to pass a callable PHP function as
+	a parameter. As can be seen in the example, there are several ways 
+	of passing a PHP function to the C++ function. When a function is 
+	passed, it is possible to use the () operator on the parameter, with 
+	the correct amount of parameters for the callable PHP function.
 	
+	When using the wrong amount, or when trying to use the () operator
+	on a non-callable type, you will get PHP errors rather than 
+	segmentation faults or other kinds of C++ errors.
+	
+	Functions and/or classes defined in this example.
+		- Php::Value call_php_function(Php::Parameters &params)