PHP and SQL Online Test

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The PHP and SQL online test assesses candidates' knowledge of programming in the PHP language as well as their ability to use SQL.

It's an ideal test for pre-employment screening. A good PHP developer needs to not only solve problems using PHP but also write and analyze SQL queries used for communication with the database.

This online test requires candidates to solve coding problems in PHP and to write SQL queries that extract, combine, and manipulate data.

Recommended Job Roles

PHP Developer

Web Developer

SQL Developer

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Sample Free Questions

Students

3min

Easy

CODE

SQL Aggregation 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

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Enrollment

5min

Easy

CODE

SQL Conditions Update Public

A table containing the students enrolled in a yearly course has incorrect data in records with ids between 20 and 100 (inclusive).

TABLE enrollments
  id INTEGER NOT NULL PRIMARY KEY
  year INTEGER NOT NULL
  studentId INTEGER NOT NULL

Write a query that updates the field 'year' of every faulty record to 2015.

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File Owners

10min

Easy

CODE

PHP Language Public

Implement a groupByOwners function that:

Accepts an associative array containing the file owner name for each file name.
Returns an associative array containing an array of file names for each owner name, in any order.

For example, for associative array ["Input.txt" => "Randy", "Code.py" => "Stan", "Output.txt" => "Randy"] the groupByOwners function should return ["Randy" => ["Input.txt", "Output.txt"], "Stan" => ["Code.py"]].

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Movies, Index Performance, Tasks, Poll, Rectangles, Retirees, Authors, Countries, Employee Manager, Merge Stock Index, Cheapest Product, Juggling Shop, Movies Live, ATM Locations, Autocomplete, Department Report, Developers, Ingredients, Delete Orders, Restaurant Menu, Roads, Sales, Student Activities, Transactions, Projects, Youngest Child, SMS Messages, Cookie, Chain Link, Crop Ratio, Hobbies, Category Tree, Programmer Teacher, Greeter, Read First Line, Chicken, Read Write Execute, Numbers to Text, Products, Array Sum, Filter, Paragraph, Last Key, Vectors, Array Search, Word Count, Log Parser, Date Transform, Needle, Height, Username, Bank Branches, Hospital Patients, View Count, Unique Numbers, Ban Users, Menu Items, Shipping, Segment

Skills

SQL Aggregation Subqueries Indexes Joins Conditions Insertion Language Union PHP Constraints Database Schema Performance tuning Bug fixing Update Delete Views Data structures Arrays Iteration OOP Exceptions Arithmetic Strings Serialization Sorting Searching Recursion Stream Algorithmic thinking

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What Others Say

Simple, straight-forward technical testing

Testdome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

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Very Prompt and helpful support when needed, we were looking to work with a third party to write and set up new tests, testdome was able to quickly set up and support a method to do this, allowing us to start testing candidates straight away.

George Offer, Guided Solutions

Easy to use and efficient for testing developers of different levels

It provides us an opportunity to set our own timing policy, to choose from variety of questions from different areas and with difficulty gradation. Also it is great that TestDome provides free of charge tests for candidates to prepare and check how online IDE works. And support is always ready to help:)

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