Embed phalanger & inject an object in scripting context

Integrating PHP and C# together. Using .NET libraries from PHP and vice versa.

Embed phalanger & inject an object in scripting context

Postby nelson4070 » April 19th, 2013, 1:07 am

Hi,

Do you have an example on how to embed phalanger in a c# application, inject a custom CLR object and then execute some php script ?

Best regards,

Nelson
nelson4070
 
Posts: 7
Joined: April 19th, 2013, 1:04 am

Re: Embed phalanger & inject an object in scripting context

Postby Jakub Misek » April 19th, 2013, 10:13 am

Hi,

To use Phalanger in C# application, add reference to PhpNetCore.dll and make use of PHP.Core.ScriptContext object.

Code: Select all
using PHP.Core;
using System;
 
namespace ConsoleApplication
{
  class Program
  {
    static void Main(string[] args)
    {
      ScriptContext context = ScriptContext.CurrentContext;
 
      // redirect PHP output to the console:
      context.Output = Console.Out; // Unicode text output
      context.OutputStream = Console.OpenStandardOutput(); // byte stream output

      // include the Library.php script, which initializes the
      // whole library (it is also possible to include more
      // scripts if necessary by repeating this call with various
      // relative script paths):
      context.Include("Library.php", true);
 
      // call function f():
      context.Call("f");
 
      // create an instance of type C, passes array
      // ("a" => 1, "b" => 2) as an argument to the C's ctor:
      var c = (PhpObject)context.NewObject("C", PhpArray.Keyed("a", 1, "b", 2));
 
      // var_dump the object:
      PhpVariable.Dump(c);

      // call static method
      var foo = new PhpCallback("C", "foo", context);
      var ret1 = foo.Invoke(null, new object[]{/*arg1, arg2, ...*/});

      // call instance method
      var bar = new PhpCallback(c, "bar"); // PhpCallback of instance method
      var ret2 = bar.Invoke(null, new object[]{/*arg1, arg2, ...*/});
    }
  }
}

There is also an API taking advantage of C# dynamic http://www.php-compiler.net/blog/2012/n ... langer-3-0 (section Globals)
Code: Select all
dynamic globals = context.Globals;
globals.foo(arg1,arg2);// function call
dynamic c = globals.@class.C(arg1,arg2) // new C;
globals.x = 123;// $x = 123
Jakub Misek │ DEVSENSE s.r.o. | @misekjakubjakub@devsense.com
User avatar
Jakub Misek
 
Posts: 2085
Joined: January 4th, 2012, 2:42 pm
Location: Prague

Re: Embed phalanger & inject an object in scripting context

Postby nelson4070 » April 19th, 2013, 11:51 am

But I do not see how to execute inline php without any file (doing a php eval). Is the dynamic object the only way to define a variable ?
nelson4070
 
Posts: 7
Joined: April 19th, 2013, 1:04 am

Re: Embed phalanger & inject an object in scripting context

Postby Jakub Misek » April 19th, 2013, 3:44 pm

Eval is described at http://www.php-compiler.net/blog/2011/php-code-c-sharp (change 2.1.0.0 to 3.0.0.0)

Global variables can be accessed thru context.GlobalVariables

Thanks,
Jakub Misek │ DEVSENSE s.r.o. | @misekjakubjakub@devsense.com
User avatar
Jakub Misek
 
Posts: 2085
Joined: January 4th, 2012, 2:42 pm
Location: Prague

Re: Embed phalanger & inject an object in scripting context

Postby nelson4070 » April 19th, 2013, 9:28 pm

The following code :

Code: Select all
            _context = PHP.Core.ScriptContext.CurrentContext;
            PHP.Core.Operators.SetVariable(_context, null, "window", browser.Window);
            string script = "$window->Alert(\"php!\");";

            PHP.Core.DynamicCode.Eval(
                script,
                false,/*phalanger internal stuff*/
                _context,
                null,/*local variables*/
                null,/*reference to "$this"*/
                null,/*current class context*/
                "php",/*file name, used for debug and cache key*/
                1, 1,/*position in the file used for debug and cache key*/
                -1,/*something internal*/
                null/*current namespace, used in CLR mode*/
            );


Gives me an error :

Code: Select all
<br/>
<b>Error</b>: Call to a member function Alert() on a non-object.<br/>
nelson4070
 
Posts: 7
Joined: April 19th, 2013, 1:04 am

Re: Embed phalanger & inject an object in scripting context

Postby nelson4070 » April 19th, 2013, 10:04 pm

Does the dynamic api works with mono 3+ ? I am getting an error...
nelson4070
 
Posts: 7
Joined: April 19th, 2013, 1:04 am

Re: Embed phalanger & inject an object in scripting context

Postby Jakub Misek » April 20th, 2013, 3:15 pm

Mono supports all the dynamic features.

Could you please var_dump($window); ? It seams $window is NULL.

Thanks,
Jakub Misek │ DEVSENSE s.r.o. | @misekjakubjakub@devsense.com
User avatar
Jakub Misek
 
Posts: 2085
Joined: January 4th, 2012, 2:42 pm
Location: Prague

Re: Embed phalanger & inject an object in scripting context

Postby nelson4070 » April 25th, 2013, 10:35 pm

Code: Select all
 var script = "var_dump($window);";
 Eval(script); // eval wrapping phalanger's eval


returns

Code: Select all
<br/>
<b>Error</b>: Call to undefined function: 'var_dump'.<br/>


but

Code: Select all
PhpVariable.Dump(output, browser.Window);


returns

Code: Select all
DomWindow(KimonoEngine.Dom.DomWindow)


Also , ApplicationContext.Default.GetLoadedAssemblies().Count returns 0. Would it be possible that the configuration file is not loaded ? If yes, is it possible to load it manually ?
nelson4070
 
Posts: 7
Joined: April 19th, 2013, 1:04 am

Re: Embed phalanger & inject an object in scripting context

Postby nelson4070 » April 25th, 2013, 11:55 pm

Found it : the config file was not loaded (my fault).

Now :
- $window->anything() works
- var_dump() doesn't work
- $browser->Window returns

Code: Select all
System.InvalidCastException: Cannot cast from source type to destination type.

at PHP.Core.PhpVariable.IsEmpty (object) <0x001b1>
at PHP.Core.Binders.PhpGetMemberBinder.<FallbackInvokeMember>b__6 (object) <0x00013>
at (wrapper dynamic-method) object.CallSite.Target (System.Runtime.CompilerServices.Closure,System.Runtime.CompilerServices.CallSite,object,PHP.Core.Reflection.DTypeDesc) <0x0003f>
at System.Dynamic.UpdateDelegates.UpdateAndExecute2<object, PHP.Core.Reflection.DTypeDesc, object> (System.Runtime.CompilerServices.CallSite,object,PHP.Core.Reflection.DTypeDesc) <0x003c7>
at <php^0>.<Global>.<php^0>.<Main> (PHP.Core.ScriptContext,System.Collections.Generic.Dictionary`2<string, object>,PHP.Core.Reflection.DObject,PHP.Core.Reflection.DTypeDesc,bool) <0x005e1>
at PHP.Core.DynamicCode.EvalInternal (string,string,string,PHP.Core.EvalKinds,PHP.Core.ScriptContext,System.Collections.Generic.Dictionary`2<string, object>,PHP.Core.Reflection.DObject,PHP.Core.Reflection.DTypeDesc,PHP.Core.Reflection.SourceCodeDescriptor,bool,PHP.Core.NamingContext) <0x00360>
at PHP.Core.DynamicCode.Eval (string,bool,PHP.Core.ScriptContext,System.Collections.Generic.Dictionary`2<string, object>,PHP.Core.Reflection.DObject,PHP.Core.Reflection.DTypeDesc,string,int,int,int,PHP.Core.NamingContext) <0x000b3>
at Kimono.Host.PhpInterpreter.Eval (string) <0x0002f>
at Kimono.Host.PhpInterpreter..ctor (Kimono.Dom.IDomBrowser) <0x0004f>
at Kimono.Sandbox.Run (Kimono.Dom.IDomBrowser) <0x000af>
nelson4070
 
Posts: 7
Joined: April 19th, 2013, 1:04 am

Re: Embed phalanger & inject an object in scripting context

Postby Jakub Misek » April 26th, 2013, 3:13 pm

Great. If builtin PHP function does not work, add following into your config file, into <phpNet><clessLibrary> section
Code: Select all
<add assembly="PhpNetClassLibrary, Version=3.0.0.0, Culture=neutral, PublicKeyToken=4af37afe3cde05fb" section="bcl" />


thanks!
Jakub Misek │ DEVSENSE s.r.o. | @misekjakubjakub@devsense.com
User avatar
Jakub Misek
 
Posts: 2085
Joined: January 4th, 2012, 2:42 pm
Location: Prague

Next

Return to PHP/C# interoperability

Who is online

Users browsing this forum: No registered users and 1 guest

cron

User Control Panel

Login

Who is online

In total there is 1 user online :: 0 registered, 0 hidden and 1 guest (based on users active over the past 5 minutes)
Most users ever online was 89 on October 15th, 2018, 4:06 pm

Users browsing this forum: No registered users and 1 guest
Phalanger