HIGH PERFORMANCE PHP

• US 20110179347A1
• Filed: 09/27/2010
• Published: 07/21/2011
• Est. Priority Date: 09/30/2009
• Status: Active Grant

• Current Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Original Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Inventors: Zhao, Haiping, Proctor, Iain Andrew Russell, Yang, Minghui
• Granted Patent: US 8,707,161 B2
• Time in Patent Office: Days
• US Class Current: 715/234
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 8/31 Programming languages or programming paradigms
• CPC Class Codes: G06F 8/51 Source to source

Abstract

Markup language documents including server side scripting code using PHP syntax are executed efficiently in response to requests received by a server. The processing of the markup language document results in generation of a transformed markup language document that is returned in response to the request. The server side script code is input to a compiler that generates C code (or code in any object-based language based on C language) implementing the functionality of the server side script code. The C code is compiled to generated object code which is executed in order to process the markup language document. The generated C code includes functionality supported by PHP language including redeclaration of functions, dynamic variables, global variables, and the like. The generated C code invokes memory allocation code that allocates and deallocates objects obtained by instantiating the generated C classes.

Claims

1. A computer-implemented method for efficiently executing server side script code on a server, the method comprising:

retrieving a markup language document including server side script code specified using PHP syntax, wherein the server side script code is for execution on a server in response to a request for the markup language document;

generating C code from the server side script code, wherein the generated C code comprises;

one or more C classes comprising code corresponding to the server side script code,

one or more C header files storing information describing structures of the C classes, and

code for memory allocation of objects instantiated from the C classes; and

compiling the generated C code to object code, wherein the object code is invoked for processing the markup language document.

2. The computer-implemented method of claim 1, further comprising:

sending the object code to a production system that received and responds to web requests, wherein the object code is invoked in response to a web request received by the production system.

3. The computer-implemented method of claim 1, wherein the generated C code comprises a function invoke table that stores function pointers to locate C functions by name, each C function corresponding to a server side script function.

4. The computer-implemented method of claim 1, wherein the generated C code comprises a global variables class comprising definitions of global variables, each global variable corresponding to a server side script global variable.

5. The computer-implemented method of claim 1, wherein the server side script code comprises dynamic variables and the generated C code comprises a mapping from strings representing variable names to structures representing variable values.

6. The computer-implemented method of claim 1, wherein the server side script code comprises a first declaration of a function and a second declaration of the function and the generated C code comprises a structure with a function pointer to one of a first C function corresponding to the first declaration and a second C function corresponding to the second declaration.

7. The computer-implemented method of claim 1, wherein retrieving the markup language document is responsive to receiving a request identifying the markup language document.

8. The computer-implemented method of claim 1, wherein the generated C code comprises C static variables allocated in the process memory that are accessible from multiple threads.

9. The computer-implemented method of claim 1, wherein the code for memory allocation allocates a set of multiple objects of the same size

10. The computer-implemented method of claim 1, wherein the code for memory allocation allocates variable sized objects that are stored in a persistent store and used subsequently for initializing global state of the C code in execution.

11. A computer-implemented method for efficiently executing PHP script code on a server, the method comprising:

receiving object code obtained by compiling C code, wherein the C code is generated from a server side script code specified using PHP syntax and implements functionality of the server side script code, the generated C code comprising;

one or more C classes comprising code corresponding to the server side script code,

one or more C header files storing information describing structures of the C classes, and

code for memory allocation of objects instantiated from the C classes;

receiving a request identifying a markup language document including the server side script code; and

responsive to the request, executing instructions in the object code corresponding to the server side script code.

12. The computer-implemented method of claim 11, further comprising:

responsive to the request, sending a transformed markup language document obtained from the markup language document subsequent to executing the server side script code.

13. The computer-implemented method of claim 11, wherein the generated C code comprises a function invoke table that stores function pointers to locate C functions by name, each C function corresponding to a server side script function.

14. The computer-implemented method of claim 11, wherein the generated C code comprises a global variables class comprising definitions of global variables, each global variable corresponding to a server side script global variable.

15. The computer-implemented method of claim 11, wherein the server side script code comprises dynamic variables and the generated C code comprises a mapping from strings representing variable names to structures representing variable values.

16. The computer-implemented method of claim 11, wherein the server side script code comprises a first declaration of a function and a second declaration of the function and the generated C code comprises a structure with a function pointer to one of a first C function corresponding to the first declaration and a second C function corresponding to the second declaration.

17. The computer-implemented method of claim 11, wherein the generated C code comprises C static variables allocated in the process memory that are accessible from multiple threads.

18. The computer-implemented method of claim 11, wherein the code for memory allocation allocates a set of multiple objects of the same size

19. The computer-implemented method of claim 11, wherein the code for memory allocation allocates variable sized objects that are stored in a persistent store and used subsequently for initializing global state of the C code in execution.

20. A computer program product for storing object code implementing functionality for efficiently executing server side script code, the computer program product comprising:

object code obtained by compiling C code, wherein the C code is generated from a server side script code specified using PHP syntax and implements functionality of the server side script code, the server side script code included in a markup language document identified in a request received by a server, the generated C code comprising;

one or more C classes comprising code corresponding to the server side script code,

one or more C header files storing information describing structures of the C classes,

code for memory allocation of objects instantiated from the C classes,

a function invoke table that stores function pointers to locate C functions by name, each C function corresponding to a server side script function, and

a global variables class comprising definitions of global variables, each global variable corresponding to a server side script global variable.