Fix PHP sync example

Mostly it was missing `%include <std_string.i>`

Examples/php/sync/example.cxx

@@ -12,8 +12,8 @@ void Sync::printer() {
 }
 
 void Sync::all_change() {
-	::s = "global change";
+    ::s = "global change";
-	++::x;
+    ++::x;
-	this->s = "local change";
+    this->s = "local change";
-	++this->x;
+    ++this->x;
 }

Examples/php/sync/example.h

@@ -4,11 +4,11 @@ extern std::string s;
 extern int x;
 
 class Sync {
-	public:
+  public:
-		int x;
+    int x;
-		std::string s;
+    std::string s;
-		void printer();
+    void printer();
-		void all_change();
+    void all_change();
 
-		Sync() : x(0) { }
+    Sync() : x(0) { }
 };

Examples/php/sync/example.i

@@ -1,5 +1,7 @@
 %module example
 
+%include <std_string.i>
+
 %{
 #include "example.h"
 %}

Examples/php/sync/runme.php

@@ -11,23 +11,21 @@ echo "PHP reading object: string is '", $o->s, "' and value is ", $o->x, "\n";
 
 $o->printer();
 
-// FIXME something is up with the setter
+example::s_set("global string");
-// type error - s_set("global string");
+example::x_set(42);
-x_set(42);
 
-// FIXME something is up with the setter
+$o->s = "object string";
-// type error - $o->s = "object string";
 $o->x = 1234;
 
-echo "PHP reading globals: string is '", s_get(), "' and value is ", x_get(), "\n";
+echo "PHP reading globals: string is '", example::s_get(), "' and int is ", example::x_get(), "\n";
-echo "PHP reading object: string is '", $o->s, "' and value is ", $s->x, "\n";
+echo "PHP reading object: string is '", $o->s, "' and int is ", $o->x, "\n";
 
 $o->printer();
 
 echo "Calling all_change() method\n";
 $o->all_change();
 
-echo "PHP reading globals: string is '", s_get(), "' and value is ", x_get(), "\n";
+echo "PHP reading globals: string is '", example::s_get(), "' and int is ", example::x_get(), "\n";
-echo "PHP reading object: string is '", $o->s, "' and value is ", $o->x, "\n";
+echo "PHP reading object: string is '", $o->s, "' and int is ", $o->x, "\n";
 
 $o->printer();