Php web developer job interview questions

Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. I was going through Questions every good. Net developer should be able to answer and was highly impressed with the content and approach of this question and so in the same spirit, I am asking this question for PHP Developer. What questions do you think should a good PHP programmer be able to respond to? EDIT : I am marking this question as community wiki as it is not user specific and it aims to serve programming community at large.

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Php web developer job interview questions

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• Web Developer Interview Questions and Answers
• PHP Developer
• Top 35 PHP Interview Questions and Answers for 5 year experience
• Most Common Interview Questions for Web Developers – Find The Right Answers
• Most PHP interview questions articles are of little help. Here’s what you may actually expect
• PHP Web Developer Interview Questions

Web Developer Interview Questions and Answers

Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. I was going through Questions every good. Net developer should be able to answer and was highly impressed with the content and approach of this question and so in the same spirit, I am asking this question for PHP Developer.

What questions do you think should a good PHP programmer be able to respond to? EDIT : I am marking this question as community wiki as it is not user specific and it aims to serve programming community at large.

NOTE : Please answer questions too as suggested in the comments so that people could learn something new too regarding the language. Admittedly, I stole this question from somewhere else can't remember where I read it any more but thought it was funny:.

A: Its the scope resolution operator double colon. An experienced PHP'er immediately knows what it means. Less experienced and not Hebrew developers may want to read this. Q: What is the cause of this warning: 'Warning: Cannot modify header information - headers already sent', and what is a good practice to prevent it?

A: Cause: body data was sent, causing headers to be sent too. Prevention: Be sure to execute header specific code first before you output any body data. Be sure you haven't accidentally sent out whitespace or any other characters. It is vulnarable to SQL injection.

Never use user input directly in queries. Sanitize it first. Preferebly use prepared statements PDO 2. This is predominantly ment to prevent queries hogging up memory when for instance a BLOB column is added at some point in the future.

Q: What is wrong with this if statement: if! Since 0 also resolves to false the solution is to use strict comparison: if false! Q: What is the preferred way to write this if statement, and why?

Q: What is the difference between public , protected and private in a class definition? A: public makes a class member available to "everyone", protected makes the class member available to only itself and derived classes, private makes the class member only available to the class itself. Q: What is the difference between an interface and an abstract class? A: An interface defines a contract between an implementing class is and an object that calls the interface.

An abstract class pre-defines certain behaviour for classes that will extend it. To a certain degree this can also be considered a contract, since it garantuees certain methods to exist. Q: What is wrong with classes that predominantly define getters and setters, that map straight to it's internal members, without actually having methods that execute behaviour?

A: This might be a code smell since the object acts as an ennobled array, without much other use. Q: Why is PHP's implementation of the use of interfaces sub-optimal? A: PHP doesn't allow you to define the expected return type of the method's, which essentially renders interfaces pretty useless. Then try to learn PDO to take advantage of prepared statements and portability across database vendors. Add a token on every important request to secure important operations user must have seen the form before sending the crucial request.?

Functions which interpret PHP code possibly included in a remote file or which execute command on your system. The first one transforms the entry in something less hostile.

The second one check if the entry is correct and, if not refuse it. I think a good question would be: how does HTTP work? Answer: When a number is preceded by a 0 in PHP, the number is treated as an octal number base Therefore the octal number is equal to the decimal number Both will often work, but only the quoted form is correct.

I've seen this way too much. Here are questions that were not clear at all for me after I've read some basic books. But until I found answers to these questions my code was really terrible :.

Thats why you should always send input from the client through htmlspecialchars first. Take survey. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge.

Create a free Team Why Teams? Learn more. Asked 12 years, 4 months ago. Modified 10 years, 8 months ago. Viewed k times. Similar question here, about "common mistakes for PHP programmers to avoid": stackoverflow. Sorted by: Reset to default. Highest score default Date modified newest first Date created oldest first. A: Its the scope resolution operator double colon An experienced PHP'er immediately knows what it means.

But more serious questions now: Q: What is the cause of this warning: 'Warning: Cannot modify header information - headers already sent', and what is a good practice to prevent it?

OOP specific Q: What is the difference between public , protected and private in a class definition? The strpos question I would not be able to answer without looking up php. I feel no need to waste brain space on memorizing the utter chaos that is PHP's basic set of functions, which ones return -1, which ones false, which ones null, and which ones something entirely different. The other questions I find all right, though.

Pekka: But you should know that strings are zero-indexed and therefore strpos must be able to return zero for a found prefix. Sorry but Futhermore these questions don't check any thinking skills sorry, I don't know good English word to explain it. What I mean is that you don't check whether programmer is able to create non standard algorithms etc. No idea why this coding style gets so much kudos when it's inherently flawed. Show 22 more comments.

Definitively security questions! Need careful check of the parameters used when opening file or remote resources. It is going to be long so I skip the answer, please read the PHP manual. I know there are others doing similar work. Add a comment. I think this is a good question, actually. PHP does have merits and drawbacks compared to alternatives, and contrary to popular or maybe elitist belief, there are valid reasons for using it.

I agree that it's a valid question. Is php cross-browser? Michael Stum. Because if you already know the type of variable you are using there is no need for the overhead of a type check in the comparison.

If you don't know what the type of your variable is then you have bigger problems than using the wrong comparator. Explain why the following code displays 2. Nathan Osman. Actually, I'd hope it doesn't require speaking at length When a site is developed using php and it's utter crap, is it: a PHPs fault b Programmers fault.

I think this is valid. PHP has more than its fair share of new developers so it's probably relevant. The programmer's fault, invariably. Wikipedia stands out among thousands of others.

PHP might have its faults, but its success is undeniable. PHP does what you tell it to do, it's not magical it doesn't have a mind of it's own. But where is the point that a good PHP developer should be able to answer this question?

Every good programmer knows that if something is not working it is most probably his fault and not the language's. Show 1 more comment. What is the best practice for escaping user input? This question seems to come up often. It's a trick question of course. It's output that needs escaping, not input. Or, do you consider that a part of the output? Escaping input prior to db interaction is required.

PHP Developer

But also because making the right advanced PHP interview questions is tricky. Here are a few advice and interview questions from my experience as a recruiter to help you hire the best PHP developer for your team. PHP — Hypertext Preprocessor — is an open-source server-side scripting language. A skilled PHP developer can create dynamic web pages and interact with databases. So, your client can follow the process without knowing the exact coding script. After that, it selects a random banner from its table records to send it back to the calling script.

Top 35 PHP Interview Questions and Answers for 5 year experience

Appearing for a web developer interview is the first step of what could be a very successful career of your dreams. However, if you really want to nail the interview, you need to be prepared for the commonly-asked web developer interview questions. In the era of the Internet, web design and web development are very prospective jobs and many big companies are hiring new developers on a daily basis. However, the competition is quite fierce so you need to take every advantage you can get. Since it all starts with the job interview, it only makes sense that you are ready to answer all the web designer interview questions as well as the web development interview questions. Hopefully, these developer interview questions will help you score the job of your dreams. This is one of the first interview questions for a web developer you will need to answer during the interview.

Most Common Interview Questions for Web Developers – Find The Right Answers

Are you planning to start your career as a PHP developer? Interestingly, it's one of the most widely-used server-side languages and has been so for the past 25 years. Despite its long-term history, the demand for PHP hasn't dwindled. Per the U.

Most PHP interview questions articles are of little help. Here’s what you may actually expect

In this article, we have provided the significant PHP interview questions and answers for freshers who will be going for a job interview as a PHP developer. These PHP interview questions have been designed uniquely to get you familiar with the nature of questions you may face during your interview for the subject of PHP Programming Language. It will help you to prepare for technical interviews and online selection tests conducted during campus placement for freshers and job interviews for professionals. We hope you get these PHP interview questions and answers helpful and it will also help you to expand your essential PHP skills. Why should you read this article? We would advise you read this blog because it provides an insight of the following:.

PHP Web Developer Interview Questions

There is a list of top frequently asked WordPress interview questions and answers are given below. The first version of WordPress was released in It allows users to create dynamic websites from personal blogs to E-commerce. Ans — In WordPress, Plugins are a piece of code that contains one or more functions written to extend and add to the functionality of an existing WordPress website. The plugin offers custom functions and provides many features so that each user can tailor their site to their specific requirements. Ans — Post Page 1. Posts are dynamic content. Pages are static content.

For the past three decades, computer programming has been quite the talk of the town. Advancements, upgrades, and technological shifts are helping organizations to increase their performance, efficiency, and output through computer programming. Technically, programming means instructing the computer through a set of instructions to perform specific tasks.

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By Priya Pedamkar. All of you may remember the actual fact that the internet development market is growing like something, and particularly the web application programmers are the first beneficiary of this growth. PHP developers are still in high demand for online web application development. And there are a lot of high-end enterprise-level websites created by PHP. So if you have finally found your dream job in PHP but are wondering how to crack the PHP Interview and what could be the probable PHP Interview Questions, every interview is different, and the scope of a job is different too. Keeping this in mind, we have designed the most common PHP Interview Questions and Answers to help you get success in your interview. Below are the 9 important PHP Interview Questions and answers that are frequently asked in an interview.

There are a lot of opportunities from many reputed companies in the world. According to research PHP has a market share of about I hope these questions would help you in cracking the PHP interview and landing your dream job. If in case you have attended any PHP interview earlier and unable to find the same questions here, then feel free to comment on those questions in the comment section, and we will update them in this PHP interview questions blog so that it could help other students to learn from your experience.