PHP, MySQL, and SQL Online Test

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

It's an ideal test for pre-employment screening. A good PHP developer, who is working exclusively on an MySQL server database layer, needs to not only solve problems using PHP, but also to write and analyze SQL queries that are used for communication with the database and to use MySQL-specific features to interface efficiently with a database. 

This online test requires candidates to solve coding problems in PHP, answer multiple-choice questions about MySQL, write queries and stored procedures for MySQL, and write SQL queries that extract, combine, and manipulate data.

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Free Sample Questions for PHP, MySQL, and SQL Test

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Paginate Users


MySQL Pagination Public

Consider the following table:

  username VARCHAR(50) NOT NULL

The following query is used to paginate the table:

SELECT * FROM users ORDER BY username LIMIT 5 OFFSET 15;

Select all the true statements about this method of pagination.

(Select all acceptable answers.)

File Owners


PHP Associative Arrays 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", "" => "Stan", "Output.txt" => "Randy"] the groupByOwners function should return ["Randy" => ["Input.txt", "Output.txt"], "Stan" => [""]].



SQL Aggregation Select Public

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

TABLE students
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL
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Premium Questions for PHP, MySQL, and SQL Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

PHP Language Arrays Arithmetic MySQL String Functions Aggregation JSON Strings Pass by Reference Associative Arrays Exceptions Linked List Iteration Regex Serialization Sorting Inheritance OOP Bug Fixing Integer Division XML Method Overriding Stream Window Functions Common Table Expression Recursion SQL Conditions Views Select Create Index Database Schema Performance Tuning Alter Table Constraints Create Table Subqueries Ordering Indexes Union Group by Update Insert Joins Left Join Right Join CTE Cursors Stored Procedure Date Functions Triggers Delete SQL CASE Database Normalization Session Pagination Interfaces Algorithmic Thinking
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