Junior PHP Developer
20+ Junior PHP Developer Interview Questions and Answers

Asked in Sorcflow

Q. What is pear in PHP ? What are difference between dynamic & statics website ? How to execute php script in command line ? What are rules of naming convention in php ?
PEAR is a framework and distribution system for reusable PHP components.
PEAR stands for PHP Extension and Application Repository.
It provides a structured library of code for PHP developers.
PEAR packages can be easily installed and managed using the PEAR command-line tool.
Some popular PEAR packages include PHPUnit, HTML_QuickForm, and Mail.
Dynamic websites generate content on the fly, while static websites display the same content to all users.
PHP scripts can be executed in th...read more

Asked in Bajaj Finserv

Q. What is the difference between array_merge and array_combine?
array_merge merges two or more arrays into one, while array_combine creates an array by using one array for keys and another for its values.
array_merge combines the values of two or more arrays into a single array
array_combine creates an array using one array for keys and another for its values
array_merge preserves numeric keys, while array_combine uses the first array as keys and the second as values
array_merge can merge any number of arrays, while array_combine requires two...read more
Asked in Matainja Technologies

Q. CRUD(Create, Read, Update, Delete) for Codeigniter & Core PHP & Laravel
CRUD operations in Codeigniter, Core PHP, and Laravel
Codeigniter: Use the built-in functions like insert(), get(), update(), and delete() to perform CRUD operations.
Core PHP: Write custom functions to handle database operations using SQL queries.
Laravel: Utilize the Eloquent ORM to easily perform CRUD operations using models and database migrations.

Asked in Cord4 Technologies

Q. What are some common security risks in PHP applications?
Common security risks in PHP applications include SQL injection, cross-site scripting (XSS), and insecure file uploads.
SQL injection: Attackers can manipulate SQL queries to access or modify database data. Example: Using user input directly in SQL queries without proper sanitization.
Cross-site scripting (XSS): Attackers can inject malicious scripts into web pages viewed by other users. Example: Allowing users to input HTML or JavaScript without proper validation.
Insecure file...read more

Asked in Netclues

Q. What is the difference between 'require' and 'require_once' in PHP?
Required and Required_once are PHP functions used to include files.
Required and Required_once are used to include files in PHP code.
Required_once is used to include a file only once, while Required can include the same file multiple times.
If the file is not found, Required will produce a fatal error, while Required_once will produce a warning.
Example: require 'file.php'; or require_once 'file.php';
Asked in Businesslabs Internet Services

Q. Add PHP filters to your form and store the data in the database.
Use PHP filters to validate form data and store in database.
Use filter_input() function to validate input data.
Sanitize data using filter_var() function.
Connect to database and insert data using prepared statements.
Handle errors and exceptions appropriately.
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Asked in Netclues

Q. What is the difference between let, const, and var?
let, const and var are used to declare variables in JavaScript with different scoping rules.
var has function scope and can be redeclared and reassigned
let and const have block scope and cannot be redeclared
const cannot be reassigned after declaration
let can be reassigned after declaration
Use const for values that won't change, let for values that will change
Example: var x = 10; let y = 20; const z = 30;
Example: function example() { var x = 10; let y = 20; const z = 30; }
Examp...read more
Asked in Businesslabs Internet Services

Q. How many years of experience do you have in web development?
I have 2 years of experience in web development.
I have worked on various projects using PHP, HTML, CSS, and JavaScript.
I have experience in developing responsive websites and web applications.
I have worked with popular CMS platforms like WordPress and Drupal.
I have knowledge of database management using MySQL and SQL Server.
I have experience in version control using Git.
I have worked in a team environment and have good communication skills.
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Asked in Cord4 Technologies

Q. What is the purpose of the array_merge() function?
array_merge() function is used to merge two or more arrays into a single array.
Combines the values of two or more arrays into a single array
Preserves numeric keys, but reindexes string keys
Useful for combining data from multiple sources

Asked in FirstCry

Q. What are the OOP concepts in PHP?
OOPs concepts in PHP include inheritance, encapsulation, polymorphism, and abstraction.
Inheritance allows a class to inherit properties and methods from a parent class.
Encapsulation is the practice of keeping properties and methods private to a class.
Polymorphism allows objects of different classes to be treated as if they are of the same class.
Abstraction is the process of hiding implementation details while showing only the necessary information.
Examples of OOPs concepts in...read more

Asked in Netclues

Q. What is the latest version of Laravel?
The latest version of Laravel is 8.0.
Laravel 8.0 was released on September 8, 2020.
It includes new features like Laravel Jetstream, model factory classes, and dynamic blade components.
It requires PHP 7.3+ and has support for PHP 8.0.
Laravel follows semantic versioning, so major releases may include breaking changes.

Asked in Netclues

Q. What is the latest version of PHP?
The latest stable version of PHP is 8.0.11.
PHP 8.0 was released on November 26, 2020.
It introduced several new features and improvements such as JIT compiler, union types, named arguments, and more.
The latest stable version as of October 2021 is 8.0.11.

Asked in Cord4 Technologies

Q. How do you handle errors in PHP?
Errors in PHP can be handled using try-catch blocks, error reporting functions, and custom error handling functions.
Use try-catch blocks to catch exceptions and handle errors gracefully
Set error reporting level using error_reporting() function to control which errors are displayed
Create custom error handling functions using set_error_handler() to handle errors in a specific way
Asked in Businesslabs Internet Services

Q. Create a simple form using CSS or Bootstrap.
To create a simple form using CSS or Bootstrap, follow these pointers:
Start with a basic HTML form structure
Add CSS or Bootstrap classes to style the form elements
Use form validation to ensure data is entered correctly
Consider accessibility and usability when designing the form

Asked in Cognizant

Q. What are the different types of JOINs in SQL?
Joins in SQL are used to combine data from two or more tables based on a related column.
Joins are used to retrieve data from multiple tables in a single query
There are different types of joins such as inner join, left join, right join, and full outer join
Inner join returns only the matching rows from both tables
Left join returns all the rows from the left table and matching rows from the right table
Right join returns all the rows from the right table and matching rows from th...read more

Asked in The WildTigers Technologies

Q. Are you okay with a 6-month verbal bond?
Yes, I am okay with a 6 month verbal bond.
I understand the importance of commitment and loyalty to the company.
I am confident in my skills and ability to contribute to the company's success.
I am willing to sign a written agreement if required.
I expect fair treatment and opportunities for growth within the company.

Asked in Netclues

Q. Have you worked with JavaScript?
Yes, I have worked on JavaScript.
I have experience in using JavaScript for front-end development.
I have worked with jQuery library for DOM manipulation and AJAX requests.
I have also used JavaScript for form validation and creating interactive UI elements.
I am familiar with ES6 features like arrow functions, template literals, and let/const declarations.

Asked in Sorcflow

Q. What are the common uses of PHP?
Common features of PHP include dynamic typing, easy integration with HTML, and extensive library support.
Dynamic typing allows for flexibility in variable types
Easy integration with HTML allows for server-side scripting
Extensive library support allows for efficient development
Other common features include object-oriented programming and database integration
Asked in Magneq Services

Q. What is PHP, and can you explain it?
PHP is a server-side scripting language used for web development.
PHP stands for Hypertext Preprocessor.
It is widely used for creating dynamic web pages and web applications.
PHP code is embedded within HTML code.
PHP can interact with databases like MySQL to create dynamic content.
Popular content management systems like WordPress and Drupal are built using PHP.

Asked in ECLEVA - Microsoft Solutions Partner

Q. What are PHP strings and their types?
PHP strings are sequences of characters used to store and manipulate text data in PHP programming.
Strings can be defined using single quotes: $string = 'Hello, World!';
Strings can also be defined using double quotes: $string = "Hello, World!";
PHP supports various string operations like concatenation: $fullString = $string1 . $string2;
You can access individual characters in a string: $char = $string[0]; // 'H'
PHP has built-in functions for string manipulation, e.g., strlen($st...read more
Asked in Magneq Services

Q. How do you insert JavaScript into PHP?
JavaScript can be inserted in PHP using

Asked in The WildTigers Technologies

Q. Are you comfortable with the Shahibaug location?
Yes, I am okay with Shahibaug location.
I am comfortable with the location.
I have no issues with commuting to Shahibaug.
I have worked in similar locations before.
Asked in RudraTech IT Services

Q. What is Object-Oriented Programming in PHP?
PHP Object Oriented Programming (OOP) allows developers to create reusable code through classes and objects.
Encapsulation: Bundling data and methods that operate on the data within one unit (class). Example: class User { private $name; }
Inheritance: Creating new classes based on existing ones, allowing for code reuse. Example: class Admin extends User {}
Polymorphism: Methods can be redefined in derived classes. Example: function display() in User can be overridden in Admin.
Ab...read more

Asked in Senco Gold

Q. Tell me about yourself.
I am a passionate Junior PHP Developer with a strong foundation in web development and a keen interest in learning new technologies.
Educational Background: I hold a degree in Computer Science, where I learned the fundamentals of programming and web development.
Hands-On Experience: I have completed several projects using PHP, such as a personal blog and a small e-commerce site, which helped me apply my skills.
Familiarity with Frameworks: I have experience with Laravel, which I...read more

Asked in ECLEVA - Microsoft Solutions Partner

Q. What is a PHP array?
PHP arrays are versatile data structures that store multiple values in a single variable, allowing for efficient data management.
Arrays can hold different data types: $arr = array(1, 'two', 3.0);
Associative arrays use named keys: $assoc = array('name' => 'John', 'age' => 30);
Arrays can be multidimensional: $multi = array(array(1, 2), array(3, 4));
Accessing elements: echo $arr[0]; // Outputs: 1
Count elements: echo count($arr); // Outputs: 3

Asked in Vcare Trichology

Q. role of php
PHP is a server-side scripting language primarily used for web development, enabling dynamic content generation and database interaction.
Server-side scripting: PHP runs on the server, generating HTML content before it's sent to the client.
Database interaction: PHP can connect to databases like MySQL, allowing for data storage and retrieval. Example: Using PDO for secure database access.
Form handling: PHP processes form data submitted by users, enabling functionalities like us...read more
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