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PHP Write For Us – If you’ve ever thought about becoming a full-time programmer, now is your chance. With programming and scripting tongues ​​on the rise, several renowned global companies are looking for expert programmers and designers. These companies are usually ready to offer huge salaries and excellent working conditions, so it is not surprising that many try to get the job they have always dreamed of! With PHP being the most popular programming language, it is an option you should consider. However, if you want to land living a job as a PHP expert, you’ll need to be prepared. It is for this very aim that this PHP tutorial will prepare you for the most typical PHP job interview questions.

Once we have PHP job interview questions covered, we will talk about how to use PHP practice in job interview questions. Then I’ll give you a series of tips and tricks so you can maximize your odds of landing the job you’ve always dreamed of.

PHP Job Interview Questions – Introduction

We will start with the most straightforward PHP job interview questions so that you have a clear perspective of what job interviews are like. Then, we will move on to other, much more advanced questions. After all, by the end of this PHP tutorial, you will better understand PHP job interview questions.

Question 1: What is PHP?

The most common question you’ll come across in an interview is “What is PHP?” or “What does PHP mean?” I would suggest that you answer these questions in the simplest way possible; it is not necessary to give extremely elaborate or overly technical explanations. Your potential employer will appreciate your ability to explain such a complicated topic in your own words.

So what does PHP mean? Well, the acronym itself derives from ” Personal Home Page. ” However, the more scientific answer would be ” Hypertext preprocessor .”

PHP is an open-source programming language. Being one of the most popular programming languages ​​in the world, you wouldn’t be reading this PHP tutorial if this wasn’t the case.

PHP is most commonly used for web development. Developers love it for its ease of being added to HTML.

Question 2: What is PHP “PEAR”?

PHP PEAR is an extension of the PHP programming language. Acronym for “PHP Extension and Application Repository.”

Experienced programmers usually use PEAR, it offers many more options and functions than the standard version of PHP.

Question 3: What is PHP used for?

There is a wide variety of uses for PHP. To name a few:

  • You can create, write, and close system files.
  • You can encrypt data or prevent people from accessing parts of your website.
  • It is used to experiment with cookies: You can modify and configure them according to your needs.

Question 4: How many versions with PHP compatibility are there?

Currently, there are four versions of PHP; PHP 5.6, PHP 7, PHP 7.1, and PHP 7.2.

It is always advised to use the latest version available (7.2)

Question 5: Name the types of errors in PHP

There are three types of errors in PHP; notices, warnings and fatal errors.

Notices are the most common you will find; they do not harm the well-being of the code. Warnings are the second level of errors, but they don’t hurt your code either. Fatal errors, however, are a different story since once a fatal error occurs, the code execution process will be terminated immediately.

Some job interview questions will make you explain in detail what you would do in these cases but don’t worry; we’ll review this part in a moment. Although if you answer the question in the way we have shown you before, you should not have any problems. A good rule of thumb when answering PHP job interview questions is to provide a direct answer followed by 1-2 explanatory paragraphs. With this, you will show that you know what you are talking about and that your solutions are credible.

Question 6: What is the most common tag when adding PHP to HTML?

The most common tag is:

Question 7: Is PHP an Object Oriented Programming (OOP) Language?

OPP, short for ” object-oriented programming,” is a type of programming language focused on the object of the task, with all the resources and functions intended to create and promote its development.

PHP 5 is considered an excellent OPP programming language; it provides many of the features that OPP represents.

Question 8: When do we use a “Final Method”?

The final method is used for the simple purpose of making a method no longer nullable.

Question 9: Is PHP single or multiple inheritances?

This is one of the more detailed PHP job interview questions, but don’t be fooled; the answer is quite simple.

In PHP, you can only extend a class through a single class; this means that PHP is single inheritance.

Question 10: How to allow the use of “Image” in PHP?

To use the image function in PHP, you will need to have downloaded the GD Library, a drawing tool that allows you to alter the information in an image.

So, these were the first ten job interview questions. As I mentioned at the beginning, they are not very complicated. Such PHP questions are meant to check whether you know what you are talking about or are just a random person who decided to apply for the PHP position.

Now I’m going to give you a couple more job interview questions; these are the type of questions your employer will use once they know you have an idea of ​​what you’re talking about. These questions usually require some technical and practical knowledge.

Question 11: How would you connect a MySQL database to PHP?

You would do it by following the code below:

Here “pepper” is the host while “Daniel” is the username, and the numbers 1-5 are password examples. “Applesauce” will be part of the database you want to connect to.

Question 12: How many objects can you create in PHP?

Unlimited. However, there is a catch.

To start creating objects in PHP, you will first need to define the class. After doing this, you will be able to create an unlimited number of things in that class.


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