This HTML/CSS, JavaScript, PHP, and SQL Online Test Separates Good From Bad Hires

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About the test

The HTML/CSS, JavaScript, PHP, and SQL online test assesses candidates' knowledge across the whole Web stack from HTML, CSS, and JavaScript on the Web front-end over PHP on the back-end to SQL for data access.

It's an ideal test for pre-employment screening. A good full stack PHP developer needs to be able to use a wide range of technologies.

This online test requires candidates to solve coding problems and find and fix bugs in multiple technologies.

Sample public questions

Every user on your website has an image avatar that is displayed when they post a comment. You want to style these images differently from other images on your site. Add a CSS class named avatar that fulfils the following requirements:

  1. The avatar's border is rounded, so that it appears as a circle.
  2. The avatar's width and height are both 150px.
  3. The avatar has a solid border, has a width of 2px, and be colored gray.

For example, the avatar in the template should look like:

Cat avatar

HTML/CSS
Borders
Element Size
Styling
Easy
7 min
code
Public

You're maintaining the PHP back-end of a Tree Planting website.

The registerForEvent function is called by the server when interested people fill a form to register for a tree planting event.

The register function it calls performs the registration logic.

Consider the code for the registerForEvent function:

function registerForEvent($name, $seedBagsNeeded)
{
    $sanitizedName = filter_var($name, FILTER_SANITIZE_SPECIAL_CHARS);
    $filteredBagsNeeded = filter_var($seedBagsNeeded, FILTER_VALIDATE_INT);
    register($sanitizedName, $filteredBagsNeeded);
}

What is correct about the filtering and sanitization done in the code above?

PHP
Sanitization
Validation
Easy
5 min
mca
Public

Implement the ensure function so that it throws an error if called without arguments or the argument is undefined. Otherwise it should return the given value.

JavaScript
Error Handling
Language
Easy
3 min
code
Public

Given the following data definition, write a query that returns the number of students whose first name is John.

TABLE students
   id INTEGER PRIMARY KEY,
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL
SQL
Aggregation
Select
Easy
3 min
code
Public

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150 more premium HTML/CSS, JavaScript, PHP, and SQL questions

  Positive Numbers,   Links,   Truthy Expressions,   Greeter,   Last Key,   Height,   Shipping,   Numbers to Text,   Ad,   Array Sum,   Article Style,   Baby Names,   Category Tree,   Chain Link,   Cities,   Editor,   Format Table,   Hobbies,   Keywords,   Label Color,   Loading,   Logo,   Paragraph,   Products,   Shirts,   Upload,   Username,   View Count,   Warehouse,   Widgets,   Language Teacher,   iframe,   Max Sum,   Crop Ratio,   Launch Time,   Function Wrapper,   Link,   Log Parser,   Log Parser,   Unique Numbers,   Kilometer Converter,   Load URL,   Photon Frequency,   String Occurrence,   Addition,   Trading Data Paging,   Color Codes,   Tax Calculator,   Bookmark,   Screen Reader,   Game Offer,   Bicycle Report,   Curious Leaf,   Gaming Console,   Travel Blog,   Confirm,   Blog,   Special Actions,   Friend,   Array Search,   Roads,   Authors,   Autocomplete,   Ban Users,   Bank Branches,   Cheapest Product,   Countries,   Developers,   Hospital Patients,   Index Performance,   Menu Items,   Movies,   Projects,   Rectangles,   Restaurant Menu,   Retirees,   SMS Messages,   Poll,   Users and Accounts,   Matching Clothes,   Agents,   Sales,   Employee Manager,   Auto Show,   Delete Orders,   Welfare Organization,   Tasks,   Manager Sales,   Student Rankings,   Student Activities,   Youngest Child,   Movies Live,   Department Report,   Ingredients,   Average Salary,   Movie Genres,   Segment,   Christmas Tree,   Timesheet,   Email Tables,   Data Entry,   Price List,   Ice Cream Flavors,   Memory Game,   TestDome Logo,   River Discharge,   Vectors,   ATM Locations,   Cookie,   Read Write Execute,   Read First Line,   New Folder,   Post Comment,   Row Appender,   Vectors,   Segment,   Special Actions,   Height,   Product Rating,   Validation,   Cards,   Array Search,   Screen,   Timer,   Username,   Snapshot,   Scale Font Size,   Products,   Paragraph,   Hide Button,   A Tag,   Hobbies,   Loading Bar,   Log Patch,   Double,   Table of Names,   Filter,   Filter,   Transactions,   Reorder,   Fire Dragon,   Share Button,   Unique Numbers,   Shipping Service,   Action Stack,   Flower Shop,   PC Parts Seller,   Merge Stock Index,   Date Transform,   Date Transform.

Skills and topics tested

  • JavaScript
  • Closures
  • HTML/CSS
  • CSS Selectors
  • Styling
  • Language
  • PHP
  • Arrays
  • Arithmetic
  • Strings
  • Element Spacing
  • Pass by Reference
  • Flexbox
  • Positioning
  • Associative Arrays
  • Exceptions
  • Linked List
  • Fonts
  • Elements and Attributes
  • HTML5
  • Iteration
  • Animation
  • Regex
  • JSON
  • Serialization
  • Sorting
  • Forms
  • Inheritance
  • OOP
  • Hyperlink
  • IFrame
  • Algorithmic Thinking
  • Bug Fixing
  • Integer Division
  • Timing Events
  • XML
  • Dictionary
  • Method Overriding
  • Ajax
  • HTTP
  • Promise
  • Stream
  • CSS Advanced
  • Element Size
  • Pagination
  • Classes
  • Objects
  • Bookmarks
  • Accessibility
  • CSS Basics
  • Tables
  • Responsive Design
  • UI
  • Dialog Box
  • Event Handling
  • Semantic Tags
  • Graphs
  • Recursion
  • SQL
  • Conditions
  • Views
  • Select
  • Create Index
  • Database Schema
  • Performance Tuning
  • Alter Table
  • Constraints
  • Create Table
  • Aggregation
  • Subqueries
  • Ordering
  • Indexes
  • Group by
  • Update
  • Insert
  • Joins
  • Left Join
  • Right Join
  • Delete
  • SQL CASE
  • Union
  • CTE
  • Borders
  • Inline Styles
  • Selectors
  • CSS Layout
  • Database Normalization
  • Session
  • Content Manipulation
  • DOM Manipulation
  • Attribute Manipulation
  • ECMAScript 2015
  • Asynchronous Calls
  • Callback
  • Monkey Patching
  • Interfaces
  • Stack
  • Null Coalescing Operator
  • Properties

For job roles

  • Full-Stack Developer
  • JavaScript Developer
  • PHP Developer
  • SQL Developer
  • Web Developer

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