Learn PHP Communicate

About communication.

All people are independent (or almost)! All people communicate!
Everyone knows the rite of communication between people, its causes. To get the information we need about her, you can ask, and not necessarily a specific person. To ask, so to speak, in the air, if someone knows the answer, he will answer.

About JavaScript and Qt.

I love javascript. I like his flexibility. I like his event system.
Although I do not consider myself a C ++ programmer, I like Qt. His (her?) Signal / slot system.

Why did I remember the language and the library? Because they can communicate, it makes them stand out.

About the idea.

All modules are independent (or almost)! All modules communicate!
Somehow I thought: why would teach another one of my favorite language? PHP
I imagined a system where all its components are independent of each other, moreover, they do not know about each other.
They communicate.

- Does anyone have the value of the variable xxx?
- Yes, of course, hold.
- Can someone give me the last 10 comments?
- No problem.

')

On the implementation.

Looking for some information on this issue, I found an attempt to implement Qt in PHP - QPHP, but this is not what I wanted. There is also the implementation of signals / slots in the ezComponents framework, but this is also not the case. That's why I started designing the core of the future library.
In my imagination, she looked like this:

As can be seen on the scheme, all components of the system depend only on the kernel, since all messages / events go through it.
What I decided to include in the kernel:

• most importantly, a class-singleton that implements the communication itself, it simulates the main Qt methods (connect, disconnet, emit, isConnected), and implements an exception system (messages that the kernel does not need to respond to)
• it was decided to wrap the signals and slots in the classes, to control the types, and generally encapsulate some logic
• configurator - the class that loads the config, I decided to include it in the kernel ... This is a controversial issue, but it seemed to me to be correct (of course, it will communicate with the modules only with messages)
• superclass for classes that will be used by messages (it makes the request of the message manager transparent)
  module superclass - it can load module information, check dependencies, etc.

In my opinion this is quite enough.

Implementation code wait soon.

About use

In typical usage, I see something like the following:

1. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
3. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
4. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
5. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
6. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
7. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
8. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
9. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
10. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
12. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
13. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
14. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
15. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
16. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
18. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
19. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
20. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
21. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
22. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
23. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
25. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
26. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
27. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
28. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
29. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
31. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;
32. <?php class module_test_1 extends module { public function __construct ( ) { // , , $this -> emit ( new signal ( 'config.getvar' , array ( 'var' => 'varname' , 'callback' => array ( $this , 'write' ) ) ) ; $this -> emit ( new signal ( 'module_test_1.run' ) ) ; } public function write ( $val ) { echo "varname = $val " ; } } class module_test_2 extends module { public function __construct ( ) { $this -> connect ( new slot ( 'module_test_1.run' , array ( $this , 'write' ) ) ) ; } public function write ( ) { echo "module_test_1 -> run" ; } } $test_2 = new module_test_2 ( ) ; $test_1 = new module_test_1 ( ) ;

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