Hire Dedicated PHP Developers

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  What is PEAR in PHP?

  Expect the following:

  Standing for the PHP Extension and Application Repository, PEAR is a library of open-source code for PHP developers. PEAR provides reusable components that make development easier. PEAR is one of the fundamentals of PHP. If a PHP developer isn’t aware of PEAR, you can expect them to take excessive time to finish a project.

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  What is the OOPs concept and what are its Principles in PHP?

  The following answer would be ideals:

  OOP is a programming approach where there’s an emphasis on data and its associated functions. With the rising importance of data, OOP is becoming an essential concept.

  In PHP, OOPs help to make the code easier to maintain and modify. PHP has six OOP concepts – Class, Objects, Inheritance, Interface, Abstraction, and Magic Methods.

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  What is a closure in PHP? Why is it used?

  Also known as an anonymous function, a closure is a function that can be created without a specific name. Closure gives you access to an outer function’s limit from an inner function.

  The closure function was introduced in PHP 5.3 and is most widely used for the callback function. It is especially useful when accessing higher-order functions.

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  What are the differences between $message and $$message?

  Expect the following answer:

  $message is a regular variable whereas $$message is a reference variable. $message stores a fixed data value and has a fixed name. However, the $$message stores data about the variable. So the $$message changes when the variable does.

• 

  What are the rules for naming variables in PHP?

  These are 5 rules for naming variables in PHP.

  • All variables start with the ‘$’ symbol followed by the name.
  • The variable name must start with the ‘_’ symbol or a letter
  • The name cannot have spaces
  • Variable names can only contain alphanumeric values or an underscore. No other characters may be used.
  • Variable names are case sensitive

Since variables are what store data in a program, this is a fundamental concept you should look for when hiring a dedicated PHP programmer.

But beyond technical PHP prowess, you should hire PHP web developers who also have good problem-solving skills. Coding doesn't have to be their forte. But if they’re able to showcase a presence of mind, you shouldn’t discount that PHP web developer.

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  What was the most challenging problem you faced when developing a PHP code and how did you solve it?

  This is a roundabout way of asking what their least favorite part of PHP web development is. By this, you can gauge what the candidate believes is their weakness.

  The answer to how they overcame the challenge will reveal to you their way of working. See what resource they consulted for help, or if they gave up and passed on the challenge to someone else.

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  What is the largest application you’ve ever worked on? Explain some of the key concepts of it.

  The answer to this question will tell you the extent of skill the potential PHP web developer hire has. The concepts of the application will show you the candidate’s strengths and weaknesses.

  And the confidence they show in the answer will also reveal how big of a part the candidate had in developing that program.

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  Is there a programming language that you wish you’d learned?

  If they say yes, your follow-up question should be if they’ve made any efforts to learn the language. If they have started learning other programming languages, you can tell that the candidate is adaptable and resourceful.

  If they say no, then that may reveal that the potential hire has no interests besides PHP. This, in itself, would be a problem as just knowing PHP isn’t sufficient.

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  Is PHP web development your long-term goal?

  Their answer to this question will tell you what the candidate’s long-term goals are. It’s okay if it’s just in PHP development. But you should follow up by asking how they plan to improve their skills in PHP web development.

  You don’t want to hire PHP developers who indicate that they’re going to be stagnant employees.

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  Apart from PHP, what would you say you’re best at?

  The answer to this doesn’t have to be about web development. But if they do talk about other programming languages they’re good at, then you can gauge their technical skills beyond PHP.

  But if they talk about extra-curricular activities, then you’ll be able to tell what the candidate is like outside of the office. This information would open up information about the temperament of the candidate.

  These questions will help you get a well-rounded opinion about the candidate. Go through this list to hire top PHP developers.