I'm working on CI framework,where I need to run one file in controller continuously to check the data in the database.
I have tried that by refreshing the page for every 2 seconds in PHP. But it doesn't seems like best approach to do that to load the entire page for every 2 seconds. So I'm trying to run that file through ajax call.
Normally in php I can able to do run the file continuously. I tried the same in this framework, but I'm getting some error like 'Fatal error: Class 'CI_Controller' not found in system/expressionengine/controllers/popup.php because of class in controller.
Is there any way to run the file in controller continuously through AJAX call.
Here is my code
<?php
class Popup extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('popup_model');
}
public function popup1()
{
$page = $_SERVER['PHP_SELF'];
$sec = "2";
header("Refresh: $sec; url=$page");
$data['popup'] = $this->popup_model->get_events();
$data['title'] = 'Pop Up';
if (empty($data['popup']))
{
}
else
{
$this->load->view('popup/popup1',$data);
$this->load->view('popup/eve',$data);
}
}
}
Write a ajax call into the one function and on document ready pass that function to the javascript function as setInterval(functionname, interval_delay);
Every 2 Seconds one AJAX call is not good and may overload your server with too many requests. There are other alternatives like PHPWebsockets and NodeJS to achieve this.
Related
I'm creating a WordPress plugin, and by debugging, I noticed its being called twice on each request. My plugin code is like this:
class Br1E_EngenhariaPlugin{
(...)
}
new Br1E_EngenhariaPlugin(); // A breakpoint here is called twice on each request
Debugging the code I see that the problem is that the wp-load.php file is being called twice. The first time the callstack started at index.php:
If I hit continue, it will stop again at the same breakpoint, this time the callstack started at wp-cron.php:
I tried to make my class a singleton, by using a static variable to ensure the class is loaded only once:
class Br1E_EngenhariaPlugin{
public static function LoadOnce() : Br1E_EngenhariaPlugin
{
if (self::$pluginInstance == null)
self::$pluginInstance = new Br1E_EngenhariaPlugin();
//register_activation_hook( __FILE__, array($br1Engenharia, 'install') );
return self::$pluginInstance;
}
(...)
}
Br1E_EngenhariaPlugin::LoadOnce();
But it didn't work. The $pluginInstance static variable is null on the second time it's called, it's like it's a different request.
And yes, it is a different HTML request called from spawn_cron() in the file wp-includes/cron.php:
$result = wp_remote_post( $cron_request['url'], $cron_request['args'] );
Here $cron_request['uri'] contains http://your-site.com/wp-cron.php. And you can see it in the second call stack.
wp_cron in the file wp-includes/cron.php is hooked on every' init' event. Then, if any cron jobs are to be executed, spawn_cron() is called, producing an independent HTML request to the site.
<?php
include(APPPATH.'/libraries/REST_Controller.php');
class Quiz extends REST_Controller{
function __construct()
{
// Call the Model constructor
parent::__construct();
}
public function user_get()
{
$this->load->model('Quizmodel');
$data = $this->Quizmodel->getAll();
$this->response($data, 200);
}
function restclient()
{
$this->load->library('rest', array(
'server' => 'http://localhost/CodeIg/index.php/quiz/'
));
$userr = $this->rest->get('user','','json');
echo $userr;
}
}
?>
I am able to get JSON output if I type http://localhost/CodeIg/index.php/quiz/user in my browser, however if I type http://localhost/CodeIg/index.php/quiz/restclient it gives this error: {"status":false,"error":"Unknown method"}
I tried changing get to post but still the same error.
I referred this page https://code.tutsplus.com/tutorials/working-with-restful-services-in-codeigniter--net-8814 to do it.
You pinged me on GitHub, even though I haven't used or even thought about this code in at least 4 years.
https://github.com/chriskacerguis/codeigniter-restserver/blob/d19dc77f03521c7a725a4555407e1e4e7a85f6e1/application/libraries/REST_Controller.php#L680
This is where that error is being triggered. Throw a few breakpoints in there or var_dump()'s until you see what is causing the trouble.
You probably want to get off CodeIgniter though, and use something more actively maintained like SlimPHP or Lumen.
firstly I want as you have loaded rest api and created your controller quiz as an api to call , where you can only create your functions like user_get or restclient_get and access them the same manner you are doing.Just change you function name restclient to restclient_get then it will call instead it is even not running at this moment.
I've got a php script and I want to call another php script from within it which logs data.
Problem is I need to send variables and include ('log.php?log=a&dob=fromtest'); is not working as it's saying the script is not found. If I take the variables out then the script is found no problem.
What's the proper way to do this?
You could define the variable in your code.
$_GET['log'] = 'a';
$_GET['dob'] = 'fromtest';
include('log.php');
But the proper way to do it is to write a class for it.
Should look like this:
logManager.class.php
class logManager {
public function addLog($log, $dob) {
/* do you logging */
}
// example for get log items
public function getLog($log, $limit) {
/* do your get log item thing */
}
}
LogThis.php
require_once('logManager.class.php');
$log = new LogManager();
$log->addLog('a', 'fromtest');
If you include a file i would recommend you to make a function and then call the function with parameters like this:
log.php:
<?php
function xy($log, $dob) {
//do something
}
?>
in your script:
<?php
require_once("log.php");
xy("a", "fromtest");
?>
Or you use the header(); function like this:
header("Location: log.php?log=a&dob=fromtest");
The parser will interpret that (log.php?log=a&dob=fromtest) as a file name which is very wrong because no such script file exists.I suggest you consider using the header function to access a script sending variables at the same time . Take for example this site when you 're trying to login, the url will be like.
http://so/login/?return_url=http://mycurrentpage/
I am creating a cron job that will run every few minutes and it will read from database data to see which function needs to be called and act accordingly to the data but half the crons are written in codeigniter and the other half in native php.
Is there any way to do this? I have been googling but the anwser. I came up with is that it is impossible. I tried changing directory and than including or requiring index.php from the codeigniter, in which the function is that i need to call.
while doing this if my class is written in native php, It returns some errors that don't make sense and if I correct those errors, I would say that half the system function from codeigniter would be gone. It would still be a question if it will work even then.
If my class is written in codeigniter, when I include index.php, it just breaks. No errors no response or it says that the "ENVIRONMENT" variables are already defined. Thus I have been looking for a way to undefine those variables from config file or overwrite them to null or empty string but nothing works.
If you have any ideas it would be much appreciated.
I saw a question question link about some cron jobs in php where the user #michal kralik gave an answer about what i am doing in general with database and one cron class that will call other crons (coould use help for that too).
btw forgot to mention that using curl and exec will not work, because on our servers they sometimes just stop working for no reason.
UPDATE 1:
this is my class currently after so many tries:
class Unicron extends MY_Controller {
public $config;
function __construct() {
parent::__construct();
}
public function init(){
$config['base_url'] = "http://localhost/test";
define('EXT_CALL', true); // Added EXT_CALL constant to mark external calls
$_GET['controller/method'] = ''; // add pair to $_GET with call route as key
$current = getcwd(); // Save current directory path
chdir('C:/inetpub/wwwroot/test/'); // change directory to CI_INSTALLATION
include_once 'index.php'; // Add index.php (CI) to script
define('BASEPATH', 'C:/inetpub/wwwroot/test/system/');
$this->load->library("../../application/controllers/controller.php");
$job = new $this->controller->Class();
$isDone = $job->exportExcel(somekey);
echo $isDone;
$CI =& get_instance(); // Get instance of CI
$CI->exportExcel('baseparts', 'exportExcel');
// FOR STATIC CALLING!!
//$CI->method('controller','method');
//replace controller and method with call route
// eg: $CI->list('welcome','list'); If calling welcome/list route.
//$OUT->_display(); // to display output. (quick one)
// Or if you need output in variable,
//$output = $CI->load->view('VIEW_NAME',array(),TRUE);
//To call any specific view file (bit slow)
// You can pass variables in array. View file will pick those as it works in CI
chdir($current); // Change back to current directory
echo $current;
}
where i try to define BASEPATH it does not define it nor override the previous value.
In the index.php of other codeigniter i put:
if(!defined('ENVIRONMENT'))
define('ENVIRONMENT', 'development');
this way i resolved my issue with ENVIRONMENT already being set error.
this is a few things i found and combined together, hoping it could work but still when i call it via command line it shows nothing (even tried echo anything everywhere and nothing).
This may be a long comment rather than a answer as the code supplied requires a lot of work to make it useful.
Running multiple instances of 'codeigniter' - executed from codeigniter.
Using the 'execute programs via the shell' from PHP. Each instance runs in its own environment.
There are some excellent answers already available:
By default the PHP commands 'shell' wait for the command to complete...
732832/php-exec-vs-system-vs-passthru.
However, we want to 'fire and forget' quite often so this answer is quite useful...
1019867/is-there-a-way-to-use-shell-exec-without-waiting-for-the-command-to-complete
All i did was use this show an example of how to use 'codeigniter' to do this. The example was the 'Hello World' cli example from user manual. The version of ci is 2.1.14. I haven't used 'ci' before.
It is tested and works on 'PHP 5.3.18' on windows xp.
As well as the usual 'Hello World' example, i used an example of a a command that uses 'sleep' for a total of 20 seconds so that we can easily see that the 'ci' instances are separate from each other while executing.
Examples:
<?php
class Tools extends CI_Controller {
// the usual 'hello world' program
public function message($to = 'World')
{
echo "Hello {$to}!".PHP_EOL;
}
// so you can see that the processes are independant and 'standalone'
// run for 20 seconds and show progress every second.
public function waitMessage($to = 'World')
{
$countDown = 20;
while ($countDown >= 0) {
echo "Hello {$to}! - ending in {$countDown} seconds".PHP_EOL;
sleep(1);
$countDown--;
}
}
}
'ci' code to run 'ci' code...
<?php
class Runtools extends CI_Controller {
/*
* Executing background processes from PHP on Windows
* http://www.somacon.com/p395.php
*/
// spawn a process and do not wait for it to complete
public function runci_nowait($controller, $method, $param)
{
$runit = "php index.php {$controller} {$method} {$param}" ;
pclose(popen("start \"{$controller} {$method}\" {$runit}", "r"));
return;
}
// spawn a process and wait for the output.
public function runci_wait($controller, $method, $param)
{
$runit = "php index.php {$controller} {$method} {$param}";
$output = exec("{$runit}");
echo $output;
}
}
How to run them from the cli...
To run the 'ci' 'nowait' routine then do:
php index.php runtools runci_nowait <controller> <method> <param>
where the parameters are the ci controller you want to run. Chnge to 'runci_wait' for the other one.
'Hello World: 'wait for output' - (ci: tools message )
codeigniter>php index.php runtools runci_wait tools message ryan3
Hello ryan3!
The waitMessage - 'do not wait for output' - (ci : tools waitMessage )
codeigniter>php index.php runtools runci_nowait tools waitMessage ryan1
codeigniter>php index.php runtools runci_nowait tools waitMessage ryan2
These will start and run two separate 'ci' processes.
I am trying to run a selenium test case using PHPUnit. And the first thing I do is trying the login function, this works perfect but then I want to run a function to check information on the page following the login but it opens a new browser instead of continuing in the current browser window. The reason this is a problem is because the page is setup to remove login authentication when the window is closed so if you use $this->url() to go to the page it gives the error that I need to login. This is my code right now, It starts the browser and runs the function to test the login form, then it closes the browser, open a new one and run the link check. This of course results in an error due to the authentication error because the window was closed. I could run all the tests in one function but that is really sloppy coding and I want to avoid this. Anyone know how to solve this?
<?php
class TestMyTest extends PHPUnit_Extensions_Selenium2TestCase {
public function setUp()
{
$this->setBrowser("firefox");
$this->setBrowserUrl("https://**************************");
}
public function testLoginForm()
{
$this->url("login.php");
$this->byLinkText('Forgot your password?');
$form = $this->byCssSelector('form');
$this->byName('username')->value('test');
$this->byName('password')->value('1234');
$form->submit();
}
public function testCheckForMainMenueLinks ()
{
$this->url("index.php");
$this->byLinkText('Home');
$this->byLinkText('Products');
$this->byLinkText('About us');
$this->byLinkText('Contact');
}
}
?>
To share browser sessions in Selenium2TestCase, you must set sessionStrategy => 'shared' in your initial browser setup:
public static $browsers = array(
array(
'...
'browserName' => 'iexplorer',
'sessionStrategy' => 'shared',
...
)
);
The alternative (default) is 'isolated'.
Okej so I guess you can just call the function directly from another function like so:
public function testOne
{
#code
$this->Two();
}
public function Two()
{
#code
$this->Three();
}
public function Three()
{
#code
}
and so on, this will just run the next function without a new browser, however, if it fails anywhere in any test the whole test is stoped so the feedback wont bee as good as individual tests.
make assetrions in one function because this is functional test.
i am new to phpunit and selenium too, but I successfully test all in one like this:
public function testAuth(){
$this->open('register.php&XDEBUG_SESSION_START=PHPSTORM');
$this->assertTextPresent('Register');
$this->type('name=email', "...");
$this->type('name=firstname', "...");
$this->type('name=lastname', "...");
$this->type('name=password', "...");
$this->type('name=verifyPassword', "...");
$this->click("reg-butt");
$this->waitForPageToLoad("5000");
$this->assertTextPresent('Profile');
$this->open('logout.php');
$this->assertTextPresent('text from redirect page');
$this->open('login.php');
.....
}
An elegant way to set the session shared is to use PHPUnit's setUpBeforeClass() method:
public static function setUpBeforeClass()
{
self::shareSession(true);
}
You can call PHPUnit_Extensions_SeleniumTestCase::shareSession(true) to enable browser window reuse.
In the manual it says:
From Selenium 1.1.1, an experimental feature is included allowing the user to share the session between tests. The only supported case is to share the session between all tests when a single browser is used. Call PHPUnit_Extensions_SeleniumTestCase::shareSession(true) in your bootstrap file to enable session sharing. The session will be reset in the case of not successul tests (failed or incomplete); it is up to the user to avoid interactions between tests by resetting cookies or logging out from the application under test (with a tearDown() method).