PHP Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

PHP Interview Questions

Questions Answers Views Company eMail

How can we do user authentication without using session/cookies ? For ex:- From page1 accepts user name and password and need to check in all other pages whether the user has logged in or not

TCS,

6 11966

1.Where are the sessions storing ? 2.What are the contents of a session file ? 3.If the server is loaded with too many session files there is a possibility of server crash. How can we solve this issue? 4. How does php server identify that the particular session belongs to particular user ? For ex: If two users A and B logged from different machine, separate session files (say 1 and 2) will be created in the server. But how the php knows that 1 belongs to A and 2 belongs to B ?

PA Consulting, TCS,

4 9834

1.Where are the cookies storing ? 2.What is the drawback of using cookies ? 3. If two site is having same cookie name and different values what will be the output if we echo the cookie name from those sites ? How can we solve this issue (How can we specify the domain name)?

TCS,

8 16959

Whether session will work if we disable cookies in client browser ?

10 23064

1. Write a function to swap two values ? $a = 10; $b = 20; echo $a, $b; swap(); // If u want u can pass parameters echo $a, $b; // It should print 20 , 10

Aquasol, Infosys, TCS, Torque Infotech,

14 40426

This question is regarding version control. If two developers are committing the same php file at same time what will happen ? What error it will show (if any) ?

TCS,

2 7044

What is the difference between include and include_once ? Which is one is good in terms of performance ?

Dest,

2 6080

What is the difference between mysql_connect and mysql_pconnect ? Which one is good in terms of performance ?

4 12792

How session works (internal processing of session) ?

ASD Lab, IPSR Solutions,

3 11325

Does not want to see PHPSESSID in the url. How can be done this ?

3 7160

How to check whether cookies are disbled or not in the browser ? If that is the case how do you handle the sessions ?

1 4378

What is serialization / object serialization ?

2 5812

What is the purpose of destructor ?

2 6171

Whether site will complete the execution of the script if Fatal error occurs ?

1 3805

when ever the user logged in the database table the current registered date will be appeared

3 5569

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Un-Answered Questions { PHP }

What is the difference between htmlentities() and htmlspecialchars()?

1080

sort term descripttion form, report and uery

2252

What does $_files means?

1152

What is difference between static and final in php?

1081

if you run the app program all vendor open items are cleared but is it possible to reverse the again again open items please tell me the answer

1979

What is the current stable version of php?

1107

How to calculate the difference between two dates using php?

1127

how to detect a mobile device using php

1167

What sized websites have you worked on in the past?

1077

Name and explain five of the PHP error constants?

1023

How to create a web form?

1098

Explain me is it possible to destroy a cookie?

1015

hello all, I need some sample placement papers in lion bridge.. can anyone help me?

2167

Which variable declarations within a class is invalid in php?

1042

What is the current stable version of php? What advance thing in php7?

1083

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