replaces tabs in source code with regular spaces, added example for working with global variables

2 files changed, 89 insertions, 0 deletions

diff --git a/Examples/Globals/globals.cpp b/Examples/Globals/globals.cpp
new file mode 100644
index 0000000..6fa9eea
--- /dev/null
+++ b/Examples/Globals/globals.cpp
@@ -0,0 +1,60 @@
+/**
+ *  functionvoid.cpp
+ *  @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
+ * 
+ *  An example file to show how global variables can be accessed
+ */
+
+/**
+ *  Libraries used.
+ */
+#include <iostream>
+#include <phpcpp.h>
+
+/**
+ *  Namespace to use
+ */
+using namespace std;
+
+/**
+ *  process_globals()
+ * 
+ *  This function reads and modifies global variables
+ */
+Php::Value process_globals()
+{
+    // all global variables can be accessed via the Php::globals variable,
+    // which is more or less the same as the PHP $_GLOBALS variable
+    
+    // set a global variable
+    Php::globals["a"] = 1;
+    
+    // increment a global variable
+    Php::globals["b"] += 1;
+    
+    // set a global variable to be an array
+    Php::globals["c"] = Php::Array();
+    
+    // add a member to an array
+    Php::globals["c"]["member"] = 123;
+    
+    // if a global variable holds a function, we can call it
+    return Php::globals["d"](1,2,3);
+}
+
+// Symbols are exported according to the "C" language
+extern "C" 
+{
+    // export the "get_module" function that will be called by the Zend engine
+    PHPCPP_EXPORT void *get_module()
+    {
+        // create extension
+        static Php::Extension extension("globals","1.0");
+        
+        // add function to extension
+        extension.add("process_globals", process_globals);
+        
+        // return the extension module
+        return extension.module();
+    }
+}
diff --git a/Examples/Globals/globals.php b/Examples/Globals/globals.php
new file mode 100644
index 0000000..36febf6
--- /dev/null
+++ b/Examples/Globals/globals.php
@@ -0,0 +1,29 @@
+<?php
+/*
+ *  globals.php
+ *  @author Jasper van Eck<jasper.vaneck@copernica.com>
+ * 
+ *  An example file to show the working of a void function call.
+ */
+
+// we first need to set a number of globals
+$b = 10;
+$d = function($a,$b,$c) {
+    return $a+$b+$c;
+};
+
+// call the C++ function that will do something
+$d = process_globals();
+
+// the global variable $a should not have the value 1
+echo("a = $a\n");
+
+// the variable $b should not be 11
+echo("b = $b\n");
+
+// $c should be an array
+echo("c['member'] = ".$c['member']."\n");
+
+// $d is overwritten and now is 6
+echo("d = $d\n");
+