You can also use below code 

    [
		&#39;attribute&#39;=&gt;&#39;attribute name&#39;,
		&#39;filter&#39;=&gt;array(&quot;ID1&quot;=&gt;&quot;Name1&quot;,&quot;ID2&quot;=&gt;&quot;Name2&quot;),
	],

OR

    [
		&#39;attribute&#39;=&gt;&#39;attribute name&#39;,
		&#39;filter&#39;=&gt;ArrayHelper::map(Model::find()-&gt;asArray()-&gt;all(), &#39;ID&#39;, &#39;Name&#39;),
	],


Add this in Gridview columns array:

    [
    	&#39;attribute&#39; =&gt; &#39;attribute_name&#39;,
    	&#39;value&#39; =&gt; &#39;attribute_value&#39;,
    	&#39;filter&#39; =&gt; Html::activeDropDownList($searchModel, &#39;attribute_name&#39;, ArrayHelper::map(ModelName::find()-&gt;asArray()-&gt;all(), &#39;ID&#39;, &#39;Name&#39;),[&#39;class&#39;=&gt;&#39;form-control&#39;,&#39;prompt&#39; =&gt; &#39;Select Category&#39;]),
    ],

Change values according to your attributes.

I want to check, if multiple variable are set or not, if set then only execute the script code, otherwise exit.

something like: 

    if [ ! $DB==&quot;&quot; &amp;&amp; $HOST==&quot;&quot; &amp;&amp; $DATE==&quot;&quot;  ]; then
      echo &quot;you did not set any variable&quot;
       exit 1;
    else
      echo &quot;You are good to go&quot;
    fi      




How to check if multiple variables are defined or not in bash

I want my `UILabel` to display text in following manner 6.022*10&lt;sup&gt;23&lt;/sup&gt;. What functions does Swift have for subscript and superscript?

How do I use subscript and superscript in Swift?

I am trying to make a dropdown list in the search box of a `GridView::widget`, Yii2 for searching related data. So, how can I create a simple dropdown list in the search box of `GridView::widget`, Yii2 framework?&lt;br&gt;

Thanks.

How can I use a simple Dropdown list in the search box of GridView::widget, Yii2?

I am trying to make a dropdown list in the search box of a <code>GridView::widget</code>, Yii2 for searching related data. So, how can I create a simple dropdown list in the search box of <code>GridView::widget</code>, Yii2 framework? 
Thanks.

I have been trying to find a way to determine Ajax calls in Laravel but I have not found any documentation about it.

I have an `index()` controller function where I want to handle the response differently based on the nature of the request. Basically this is a resource controller method that is bound to GET request.

```php
public function index()
{
    if(!$this-&gt;isLogin())
        return Redirect::to(&#39;login&#39;);
    		
    if(isAjax()) // This is what I am needing.
    {
        return $JSON;
    }

    $data = array(
        &#39;records&#39; =&gt; $this-&gt;table-&gt;fetchAll()
    );

    $this-&gt;setLayout(compact(&#39;data&#39;));
}
```

I know the other methods of determining the Ajax request in PHP but I want something specific to Laravel.

Thanks

**Updated:**

I tried using 

```php
if(Request::ajax())
{
    echo &#39;Ajax&#39;;
}
```

But I am receiving this error:

`Non-static method Illuminate\Http\Request::ajax() should not be called statically, assuming $this from incompatible context`

The class shows that this is not a static method.

Laravel - check if Ajax request

I have a string returned to one of my views, like this:

    $text = &#39;&lt;p&gt;&lt;strong&gt;Lorem&lt;/strong&gt; ipsum dolor &lt;img src=&quot;images/test.jpg&quot;&gt;&lt;/p&gt;&#39;

I&#39;m trying to display it with Blade:

    {{$text}}

However, the output is a raw string instead of rendered HTML. How do I display HTML with Blade in Laravel?

PS. PHP `echo()` displays the HTML correctly.



Displaying HTML with Blade shows the HTML code

# The Problem #

To improve my quality of code, I&#39;ve decided to try to learn how to test my code using Unit Testing instead of my mediocre-at-best testing solutions.

I decided to install PHPUnit using composer for a personal library that allows me to achieve common database functions. At first I didn&#39;t have a configuration file for PHPUnit and when I ran commands like:

    $ phpunit tests/GeneralStringFunctions/GeneralStringFunctionsTest

Please note that this is a terminal command, so I didn&#39;t include the `.php` extension. The GeneralStringFunctionsTest referred to above is actually a `GeneralStringFunctionsTest.php` file.

The output is what I expected:

&gt;   Time: 31 ms, Memory: 2.75Mb

&gt;   OK (1 test, 1 assertion)

I then tried to use a configuration file to automatically load the test suite instead of having to manually type in the file every time. I created a file called `phpunit.xml` in my root directory, and entered the following into the file: http://pastebin.com/0j0L4WBD:

    &lt;?xml version = &quot;1.0&quot; encoding=&quot;UTF-8&quot; ?&gt;
    &lt;phpunit&gt;
        &lt;testsuites&gt;
            &lt;testsuite name=&quot;Tests&quot;&gt;
                &lt;directory&gt;tests&lt;/directory&gt;
            &lt;/testsuite&gt;
        &lt;/testsuites&gt;
    &lt;/phpunit&gt;

Now, when I run the command:

    phpunit

I get the following output:

&gt; PHPUnit 4.5.0 by Sebastian Bergmann and contributors.
    
&gt; Configuration read from /Users/muyiwa/Projects/DatabaseHelper/phpunit.xml

&gt; Time: 16 ms, Memory: 1.50Mb
    
&gt; No tests executed!

In case it&#39;s helpful, my directory structure is as follows:  
src - Top level directory (with all my source code)  
tests - Top level directory (with all my tests, structured the same as my *src* folder)  
vendor - Composer third party files  

I also have the composer json and lock file, as well as the phpunit xml file in the top level as files.

#Things I&#39;ve Tried#

 - Changing the directory in `phpunit.xml` to `tests/GeneralStringFunctions`
 - Changing the directory in `phpunit.xml` to `./tests`
 - Moving the `phpunit.xml` file to the `tests` directory and then changing the directory to be `./` instead of `tests`.
 - Adding a suffix attribute to the directory tag in `phpunit.xml` to specify &quot;Tests&quot; as the explicit suffix.

PHPUnit - &#39;No tests executed&#39; when using configuration file

Trying to play with Laravel today for the first time. I am getting the following error when I attempt to visit localhost/project/public:

&gt; InvalidArgumentException  
&gt; Route [login] not defined.

app/routes.php:

	&lt;?php

	Route::get(&#39;/&#39;, &#39;HomeController@redirect&#39;);
	Route::get(&#39;login&#39;, &#39;LoginController@show&#39;);
	Route::post(&#39;login&#39;, &#39;LoginController@do&#39;);
	Route::get(&#39;dashboard&#39;, &#39;DashboardController@show&#39;);

app/controllers/HomeController.php:

	&lt;?php

	class HomeController extends Controller {

		public function redirect()
		{
			if (Auth::check()) 
				return Redirect::route(&#39;dashboard&#39;);
			
			return Redirect::route(&#39;login&#39;);
		}

	}

app/controllers/LoginContoller.php:

	&lt;?php

	class LoginController extends Controller {

		public function show()
		{
			if (Auth::check()) 
				return Redirect::route(&#39;dashboard&#39;);
			
			return View::make(&#39;login&#39;);
		}
		
		public function do()
		{
			// do login
		}

	}

app/controllers/DashboardController.php:

	&lt;?php

	class DashboardController extends Controller {

		public function show()
		{
			if (Auth::guest()) 
				return Redirect::route(&#39;login&#39;);
			
			return View::make(&#39;dashboard&#39;);
		}

	}

Why am I getting this error?

Route [login] not defined

&gt; This is intended to be a general reference question and answer covering many of the never-ending *&quot;How do I access data in my JSON?&quot;* questions. It is here to handle the broad basics of decoding JSON in PHP and accessing the results.

I have the JSON:

    {
        &quot;type&quot;: &quot;donut&quot;,
        &quot;name&quot;: &quot;Cake&quot;,
        &quot;toppings&quot;: [
            { &quot;id&quot;: &quot;5002&quot;, &quot;type&quot;: &quot;Glazed&quot; },
            { &quot;id&quot;: &quot;5006&quot;, &quot;type&quot;: &quot;Chocolate with Sprinkles&quot; },
            { &quot;id&quot;: &quot;5004&quot;, &quot;type&quot;: &quot;Maple&quot; }
        ]
    }

How do I decode this in PHP and access the resulting data?

How to extract and access data from JSON with PHP?

I&#39;d like to find a specific branch, and I know that its name would contain a specific substring (the id of the issue from our bug tracker), but I don&#39;t know the whole name of the branch (this is what I want to find out). 

How can I search for this branch?


How do I search for branch names in Git?

I wish to create a fuzzy search algorithm. 
However, upon hours of research I am really struggling.

I want to create an algorithm that performs a fuzzy search on a list of names of schools.

**This is what I have looked at so far:**

Most of my research keep pointing to &quot;**string metrics**&quot; on Google and Stackoverflow such as:

 - **Levenshtein distance**
 - **Damerau-Levenshtein distance**
 - **Needleman–Wunsch algorithm**

However this just gives a score of how **similar** 2 strings are. The only way I can think of implementing it as a **search algorithm** is to perform a linear search and executing the string metric algorithm for each string and returning the strings with scores above a certain threshold. (Originally I had my strings stored in a trie tree, but this obviously won&#39;t help me here!)

Although this is not such a bad idea for small lists, it would be problematic for lists with lets say a 100,000 names, and the user performed many queries.

Another algorithm I looked at is the **Spell-checker method**, where you just do a search for all potential misspellings. However this also is highly inefficient as it requires more than 75,000 words for a word of length 7 and error count of just 2.  

**What I need?**

Can someone please suggest me a **good efficient fuzzy search algorithm**. with:

 - Name of the algorithm
 - How it works or a link to how it works
 - Pro&#39;s and cons and when it&#39;s best used (optional)

I understand that all algorithms will have their pros and cons and there is no *best* algorithm.

Fuzzy search algorithm (approximate string matching algorithm)

How can I *find a file by name* in Visual Studio Code?

A Visual Studio shortcut I&#39;m used to is &lt;kbd&gt;CTRL&lt;/kbd&gt;+&lt;kbd&gt;,&lt;/kbd&gt;, but it does not work here.

Find a file by name in Visual Studio Code

I&#39;m trying to use [GitHub&#39;s code search](https://github.com/search) to search for some lines of code containing characters like `=`, `+`, etc.

I understand from https://help.github.com/articles/searching-code/#considerations-for-code-search that these characters are wildcards and have to be escaped, otherwise they will be ignored.

Here&#39;s an example: [&quot;if \$done is True\$&quot;][1], and another: [&quot;if (done is True)&quot;][2]. 

Both return the same `&quot;your query contains a character that is ignored&quot;` warning on the right side of the search bar. My escaping doesn&#39;t seem to be doing anything and the results I get are with the characters ignored.

  [1]: https://github.com/search?q=%22if%20%5C%28done%20is%20True%5C%29%22&amp;ref=searchresults&amp;type=Code&amp;utf8=%E2%9C%93
  [2]: https://github.com/search?utf8=%E2%9C%93&amp;q=%22if%20%28done%20is%20True%29%22&amp;type=Code&amp;ref=searchresults

How do I escape characters in GitHub code search?

Recently I had an interview, where they asked me a &quot;*searching*&quot; question.  
The question was:

&gt; Assume there is an array of (positive) integers, of which each element is either `+1` or `-1` compared to its adjacent elements.
&gt;
&gt; **Example:**
&gt;
&gt;     array = [4,5,6,5,4,3,2,3,4,5,6,7,8];
&gt;
&gt; Now search for `7` and return its position.

I gave this answer:

&gt; Store the values in a temporary array, sort them, and then apply binary search.
&gt;
&gt; If the element is found, return its position in the temporary array.  
(If the number is occurring twice then return its first occurrence)

But, they didn&#39;t seem to be satisfied with this answer.

What is the right answer?

Efficient way to search an element

I know that `RecyclerView` has replaced the functionality of the old `ListView` and `GridView`. I am looking for a very basic example that shows a minimal grid setup using `RecyclerView`. I am not looking for long tutorial style explanations, just a minimal example. I imagine the simplest grid that mimics the old GridView would consist of the following features:

- multiple cells per row
- single view in each cell
- responds to click events



Simple Android grid example using RecyclerView with GridLayoutManager (like the old GridView)

I am trying to layout a 4x4 grid of tiles in flutter. I managed to do it with columns and rows. But now I found the `GridView` component. Could anyone provide an example on how to do it using it?

I can&#39;t really wrap my head around the docs. I don&#39;t seem to get the results I want. 



How to create GridView Layout in Flutter

Even after specifying the height for Container GridView, my code is producing square widgets.
    
    class MyHomePage extends StatefulWidget {
      MyHomePage({Key key, this.title}) : super(key: key);
    
      final String title;
    
      @override
      _MyHomePageState createState() =&gt; new _MyHomePageState();
    }
    
    class _MyHomePageState extends State&lt;MyHomePage&gt; {
      List&lt;String&gt; widgetList = [&#39;A&#39;, &#39;B&#39;, &#39;C&#39;];
    
      @override
      Widget build(BuildContext context) {
        return new Scaffold(
          appBar: new AppBar(
            title: new Text(widget.title),
          ),
          body: new Container(
            child: new GridView.count(
              crossAxisCount: 2,
              controller: new ScrollController(keepScrollOffset: false),
              shrinkWrap: true,
              scrollDirection: Axis.vertical,
              children: widgetList.map((String value) {
                return new Container(
                  height: 250.0,
                  color: Colors.green,
                  margin: new EdgeInsets.all(1.0),
                  child: new Center(
                    child: new Text(
                      value,
                      style: new TextStyle(fontSize: 50.0,color: Colors.white),
                    ),
                  ),
                );
              }).toList(),
            ),
          ),
        );
      }
    }

The output of the code above is as shown on the left. How can I get a GridView with custom height widget as shown on the right?

[![output][1]][1]
[![Required Output][2]][2]


  [1]: https://i.stack.imgur.com/5eaSYm.png
  [2]: https://i.stack.imgur.com/SCZeOm.png

How to set Custom height for Widget in GridView in Flutter?

I would like to close my login menu dropdown when the user click anywhere outside of that dropdown, and I&#39;d like to do that with Angular2 and with the Angular2 &quot;approach&quot;...

I have implemented a solution, but I really do not feel confident with it. I think there must be an easiest way to achieve the same result, so if you have any ideas ... let&#39;s discuss :) !

Here is my implementation:

# The dropdown component: #

This is the component for my dropdown:

- Every time this component it set to visible, (For example: when the user click on a button to display it) it subscribe to a &quot;global&quot; rxjs subject *userMenu* stored within the *SubjectsService*.
- And every time it is hidden, it unsubscribe to this subject.
- Every click anywhere **within** the template of this component trigger the *onClick()* method, which just stop event bubbling to the top (and the application component)

Here is the code

    export class UserMenuComponent {

        _isVisible: boolean = false;
        _subscriptions: Subscription&lt;any&gt; = null;

        constructor(public subjects: SubjectsService) {
        }

        onClick(event) {
            event.stopPropagation();
        }

        set isVisible(v) {
            if( v ){
                setTimeout( () =&gt; {
    this._subscriptions =  this.subjects.userMenu.subscribe((e) =&gt; {
                           this.isVisible = false;
                           })
                }, 0);
            } else {
                this._subscriptions.unsubscribe();
            }
            this._isVisible = v;
        }

        get isVisible() {
            return this._isVisible;
        }
    }

# The application component: #

On the other hand, there is the application component (which is a parent of the dropdown component):

- This component catch every click event and emit on the same rxjs Subject (*userMenu*)

Here is the code:

    export class AppComponent {

        constructor( public subjects: SubjectsService) {
            document.addEventListener(&#39;click&#39;, () =&gt; this.onClick());
        }
        onClick( ) {
            this.subjects.userMenu.next({});
        }
    }

# What bother me: #

 1. I do not feel really comfortable with the idea of having a global Subject that act as the connector between those components.
 2. The **setTimeout**: This is needed because here is what happen otherwise if the user click on the button that show the dropdown:
  * The user click on the button (which is not a part of the dropdown component) to show the dropdown.
  * The dropdown is displayed and **it immediately subscribe to the userMenu subject**.
  * The click event bubble up to the app component and gets caught
  * The application component emit an event on the **userMenu** subject
  * The dropdown component catch this action on **userMenu** and hide the dropdown.
  * At the end the dropdown is never displayed.

This set timeout delay the subscription to the end of the current JavaScript code turn which solve the problem, but in a very in elegant way in my opinion.

If you know cleaner, better, smarter, faster or stronger solutions, please let me know :) !


How can I close a dropdown on click outside?

I have a list of locations that i want to implement as a dropdown list in Flutter. Im pretty new to the language. Here&#39;s what i have done.

    new DropdownButton(
      value: _selectedLocation,
      onChanged: (String newValue) {
        setState(() {
          _selectedLocation = newValue;
         });
    },
    items: _locations.map((String location) {
      return new DropdownMenuItem&lt;String&gt;(
         child: new Text(location),
      );
    }).toList(),

This is my list of items:

    List&lt;String&gt; _locations = [&#39;A&#39;, &#39;B&#39;, &#39;C&#39;, &#39;D&#39;];
    
And I am getting the following error.

    Another exception was thrown: &#39;package:flutter/src/material/dropdown.dart&#39;: Failed assertion: line 468 pos 15: &#39;value == null || items.where((DropdownMenuItem&lt;T&gt; item) =&gt; item.value == value).length == 1&#39;: is not true.

I assume the value of `_selectedLocation` is getting null. But i am initialising it like so.

`String _selectedLocation = &#39;Please choose a location&#39;;`





How to implement drop down list in flutter?

I want to use a `yii2` query in which I want to check a not equal to condition.

I tried like this but it didn&#39;t give the desired results. How do I do it?  
 
    $details =	MovieShows::find()
       -&gt;where([&#39;movie_id&#39;=&gt;$id])
       -&gt;andWhere([&#39;location_id&#39;=&gt;$loc_id])
       -&gt;andWhere([&#39;cancel_date&#39;=&gt;!$date])
       -&gt;all();

How to use not equal to inside a Yii2 query

I am new to Yii-2 framework. How can i achieve following query in Yii-2 framework using activeQuery and models.

    SELECT * FROM users AS u WHERE u.user_id IN(1,5,8) AND (u.status = 1 OR u.verified = 1) OR (u.social_account = 1 AND u.enable_social = 1)

Thanks

Yii2 How to perform where AND or OR condition grouping?

I installed the latest version (1.0.0. stable) of composer and in my Yii2 project I typed this: 

`php composer.phar update`

It gives me this error:

 

&gt; [ReflectionException] Class Fxp\Composer\AssetPlugin\Repository\NpmRepository does not exist

&lt;br

&gt; [ErrorException] Declaration of Fxp\Composer\AssetPlugin\Repository\AbstractAssetsRepository::whatProvides()  should be compatible with Composer\Repository\ComposerRepository::whatProvides(Composer\DependencyResolver\Pool $pool, $name, $bypassFilters = false)

Can someone help me how to fix this?

Here&#39;s my composer.json

    {
        &quot;name&quot;: &quot;yiisoft/yii2-app-advanced&quot;,
        &quot;description&quot;: &quot;Yii 2 Advanced Project Template&quot;,
        &quot;keywords&quot;: [&quot;yii2&quot;, &quot;framework&quot;, &quot;advanced&quot;, &quot;project template&quot;],
        &quot;homepage&quot;: &quot;http://www.yiiframework.com/&quot;,
        &quot;type&quot;: &quot;project&quot;,
        &quot;license&quot;: &quot;BSD-3-Clause&quot;,
        &quot;support&quot;: {
            &quot;issues&quot;: &quot;https://github.com/yiisoft/yii2/issues?state=open&quot;,
            &quot;forum&quot;: &quot;http://www.yiiframework.com/forum/&quot;,
            &quot;wiki&quot;: &quot;http://www.yiiframework.com/wiki/&quot;,
            &quot;irc&quot;: &quot;irc://irc.freenode.net/yii&quot;,
            &quot;source&quot;: &quot;https://github.com/yiisoft/yii2&quot;
        },
        &quot;minimum-stability&quot;: &quot;stable&quot;,
        &quot;require&quot;: {
            &quot;php&quot;: &quot;&gt;=5.4.0&quot;,
            &quot;yiisoft/yii2&quot;: &quot;&gt;=2.0.6&quot;,
            &quot;yiisoft/yii2-bootstrap&quot;: &quot;*&quot;,
            &quot;yiisoft/yii2-swiftmailer&quot;: &quot;*&quot;,
            &quot;kartik-v/yii2-widget-fileinput&quot;: &quot;@dev&quot;,
            &quot;golonka/bbcodeparser&quot;: &quot;^2.2&quot;
        },
        &quot;require-dev&quot;: {
            &quot;yiisoft/yii2-codeception&quot;: &quot;*&quot;,
            &quot;yiisoft/yii2-debug&quot;: &quot;*&quot;,
            &quot;yiisoft/yii2-gii&quot;: &quot;*&quot;,
            &quot;yiisoft/yii2-faker&quot;: &quot;*&quot;
        },
        &quot;config&quot;: {
            &quot;process-timeout&quot;: 1800
        },
        &quot;extra&quot;: {
            &quot;asset-installer-paths&quot;: {
                &quot;npm-asset-library&quot;: &quot;vendor/npm&quot;,
                &quot;bower-asset-library&quot;: &quot;vendor/bower&quot;
            }
        }
    }


Composer throws [ReflectionException] Class Fxp\Composer\AssetPlugin\Repository\NpmRepository does not exist

when i got upgraded my ubuntu from 15.10 to 16.04 i have this erro in my yii2 project

 

    SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #3
    of SELECT list is not in GROUP BY clause and contains nonaggregated column 
    &#39;iicityYii.opportunity_conditions.money&#39; which is not functionally dependent 
    on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

The SQL being executed was:

   

    SELECT SUM(oc.money),op.id,oc.money,
                op.mantaghe,
                op.`time`, op.`id`, `op`.`logo`,
               `pd`.`user_id`, `op`.`name`, 
               `pd`.`co_name`, `op`.`address`, 
               `op`.`project_type_id`, `op`.`state_id`
    FROM `opportunity` op 
    INNER JOIN `profile_details` pd  ON op.user_id=pd.user_id  
    INNER JOIN `opportunity_conditions` oc ON   op.id=oc.opportunity_id
    GROUP BY `op`.`id`
    ORDER BY `op`.`id` DESC


how to solve my problem ? 

Content Type	Original Author	Original Content on Stackoverflow
Question	washiur17	View Question on Stackoverflow
Solution 1 - Php	Vikram Pote	View Answer on Stackoverflow
Solution 2 - Php	Chinmay Waghmare	View Answer on Stackoverflow

How can I use a simple Dropdown list in the search box of GridView::widget, Yii2?

Php Problem Overview

Php Solutions

Solution 1 - Php

Solution 2 - Php

How do I use subscript and superscript in Swift?

How to check if multiple variables are defined or not in bash

Attributions