Web Development :: Jnr PHP/Codeigniter Developer Job Interview Questions and Answers

Jnr PHP/Codeigniter Developer Frequently Asked Questions in various Jnr PHP/Codeigniter Developer job interviews by interviewer. The set of questions are here to ensures that you offer a perfect answer posed to you. So get preparation for your new job interview

1 Tell us what helpers in CodeIgniter are and how you can load a helper file?
2 Do you know what is inhibitor in CodeIgniter?
3 Tell me how you can enable CSRF (Cross Site Request Forgery) in CodeIgniter?
4 Do you know how can you enable error reporting in PHP?
5 Explain me how would you declare a function that receives one parameter name hello?
6 Do you know what are SQL Injections, how do you prevent them and what are the best practices?
7 Explain me what do you call the constructor of a parent class?
8 Tell us how do you create a persistent cookie in php?
9 Tell me are objects in PHP 5+ passed by value or reference?
10 Please explain what is the main problem in comparison of floating point numbers?
11 Do you know what is CodeIgniter?
12 Please explain what are the security parameter for XSS in CodeIgniter?
13 Do you know how can we get the IP address of the client?
14 Explain me what are getters and setters and why are they important?
15 Do you know what PSR Standards do you follow? Why would you follow a PSR standard?
16 Tell me can you use include ("abc.php") two or more times?
17 Tell me what is the difference between $var and $$var?
18 Explain me the differences in comparison of variable values?
19 Tell me what do you mean by having PHP as whitespace insensitive?
20 Do you know in a PHP class, what are the three visibility keywords of a property or method?
21 Tell me why would you use === instead of ==?
22 Tell me the value of the variable input is a string 1,2,3,4,5,6,7.   How would you get the sum of the integers contained inside input?
23 Do you know what is the difference between GET and POST?
24 Tell me why is there a need to configure the URL routes?
25 Tell me what are hooks in CodeIgniter?
26 Tell me what does break 2 / continue 2 do?
27 Tell us what are the popular Content Management Systems (CMS) in PHP?
28 Who is the Rasmus Lerdorf?
29 Tell me how you will load or add a model in CodeIgniter?
30 Explain me what is the default URL pattern used in Codeigniter framework?
31 Explain me what are Traits?
32 Tell me what does MVC stand for and what does each component do?
33 What is the PHP split() function?
34 Do you know what are the popular frameworks in PHP?
35 Tell me what does a special set of tags <?=$variable ?> do in PHP?
36 Tell me how we can get the number of elements in an array?
37 Tell me how you can prevent CodeIgniter from CSRF?
38 Tell me what are the main error types in PHP and how do they differ?
39 Tell me what are PSRs? Choose 1 and briefly describe it?
40 Explain echo vs. print statement?
41 Tell me how you can link images/CSS/JavaScript from a view in code igniter?
42 Tell me what are the 3 scope levels available in PHP and how would you define them?
43 Tell me the different types of errors in PHP?
44 Tell us what are the __construct() and __destruct() methods in a PHP class?
45 Tell me how you can extend the class in Codeigniter?
46 What is routing in Codeigniter?
47 Explain me in PHP what is the difference between a Class and an Interface?
48 Explain how can we get the browser properties using PHP?
49 List out different types of the hook point in Codeigniter?
50 Explain me what’s the full form of PHP?
51 Tell me what’s the difference between the include() and require() functions?
52 Tell me what is Memcache?
53 Explain me what is the difference between the functions unlink and unset?
54 Tell us can you extend a Final defined class?
55 Tell me will comparison of string "10" and integer 11 work in PHP?
56 Explain me what’s the difference between unset() and unlink()?
57 Tell us can you send an Ajax request to another domain?
58 Do you know what is Polymorphism?
59 Tell me does PHP support multiple inheritance?
60 Tell me do you use Composer? If yes, what benefits have you found in it?
61 Tell me what Is a Persistent Cookie?

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