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


6 6467

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 ?

TCS, PA Consulting,

4 5168

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)?


8 10075

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

10 13568

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

Infosys, TCS, Torque Infotech, Aquasol,

14 23442

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) ?


2 3900

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


2 3746

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

4 9273

How session works (internal processing of session) ?

ASD Lab, IPSR Solutions,

3 8349

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

3 3991

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

1 2434

What is serialization / object serialization ?

2 3256

What is the purpose of destructor ?

2 3463

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

1 1793

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

3 2423

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