Impossible to assign simple Array on Stackable - php

Question

I am trying to create a library for codeigniter that uses pthread, everything works fine but when i want to assign a value to an array this don't work with traditional $a['key'] = 'val';
Small Test Exemple : ( updated )
class Test {
protected $core;
protected $stack;
public function init(){
$this->stack = new Test_Stack();
$this->core = new Test_Core($this->stack);
}
public function do_test(){
return $this->core->assign();
}
}
class Test_Stack extends Stackable {
protected $a;
function __construct(){
$this->a = array();
}
protected function test(){ // Call from other class extends Threads
$this->a['key1'] = 'NOWORK';
print_r($this->a); // THIS RETURN NOTHING
$this->a = array_merge($this->a, array('key1' => 'WORK'));
print_r($this->a); // NOW THIS GOOD RETURN Key1..
}
public function run(){}
}
class Test_Core {
protected $thread;
protected $stack;
function __construct($s){
$this->stack = $s;
}
public function assign(){
$this->thread = new Test_Thread($this->stack);
$this->thread->start();
$this->thread->join();
}
}
class Test_Thread extends Thread{
protected $stack;
function __construct($s){
$this->stack = $s;
}
public function run(){
$this->stack->test();
}
}
I write this basic code without testing but it's the same structure of my lib and need this to extends test_stack and add or change test function for exemple.
Even if works now, I would understand why I can't assign my array normally ?
Or rather, what am I doing wrong?

Answer 1

Working in Mine :
class Stack {
protected $a;
function __construct(){
$this->a = array();
}
function test(){
$this->a['key1'] = 'NOWORK';
print_r($this->a); // THIS RETURN NOTHING
$this->a = array_merge($this->a, array('key1' => 'WORK'));
print_r($this->a); // NOW THIS GOOD RETURN Key1..
}
}
$obj = new Stack();
$obj->test();
Output :
Array
(
[key1] => NOWORK
)
Array
(
[key1] => WORK
)

Answer 2

OK array isn't thread safe, should be used stackable, this do the trick :
Libraries/Test.php :
class Test {
protected $core;
protected $stack;
public function init(){
$this->stack = new Test_Stack();
$this->core = new Test_Core($this->stack);
}
public function do_test(){
$this->core->assign();
$this->core->assign();
$this->core->assign();
}
public function get_a(){
return $this->core->get_a();
}
}
class Test_Array_Stack extends Stackable {
public function run(){}
}
class Test_Stack extends Stackable {
protected function test($a){
$a[] = 'WORK';
}
public function run(){}
}
class Test_Core {
protected $thread;
protected $stack;
protected $a;
function __construct($s){
$this->stack = $s;
$this->a = new Test_Array_Stack();
}
public function assign(){
$this->thread = new Test_Thread($this->stack, $this->a);
$this->thread->start();
$this->thread->synchronized(function($thread){
$thread->wait();
}, $this->thread);
return $this->a;
}
public function get_a(){
return $this->a;
}
}
class Test_Thread extends Thread{
protected $stack;
protected $a;
function __construct($s, $a){
$this->stack = $s;
$this->a = $a;
}
public function run(){
$this->stack->test($this->a);
$this->synchronized(function($thread){
$thread->notify();
}, $this);
}
}
You can extends Test_Stack to create lib extension more useful for my project, like this on other file Test_Info.php :
require_once APPPATH.'libraries/Test.php';
class Test_Info extends Test {
function init(){
$this->stack = new Test_Info_Stack();
$this->core = new Test_Core($this->stack);
}
}
class Test_Info_Stack extends Test_Stack {
protected function test($a){
parent::test($a);
$a[] = 'INFO';
}
}
And usage on controller:
function index(){
//without extension
$this->load->library('Test');
$this->test->init();
$this->test->do_test();
print_r($this->test->get_a());
//with extension
$this->load->library('Test_Info');
$this->test_info->init();
$this->test_info->do_test();
print_r($this->test_info->get_a());
}
It took me some time, i hope it will help someone and LuckyBurger thank you for the explanation link.