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 9636

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 8035

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 14226

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

10 19864

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 35082

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 5878

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

Dest,

2 5044

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

4 11129

How session works (internal processing of session) ?

ASD Lab, IPSR Solutions,

3 10061

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

3 5787

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

1 3554

What is serialization / object serialization ?

2 4650

What is the purpose of destructor ?

2 5092

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

1 2869

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

3 4213


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Un-Answered Questions { PHP }

How to reset/destroy a cookie?

575


I need to know about the courses which are useful in corporate companies.. especially php/mySQL, Java/j2ee, .NET.. also tell if any other courses are valuable

1514


How to set session.gc_divisor properly?

592


How can you increase the maximum execution time of a script in php?

517


How to create an empty array in php?

575






Which is faster for or foreach?

508


What are the steps for the payment gateway processing?

536


Is php secure?

530


Does facebook use php framework?

554


Can we extend final class in php?

508


Why do we use sessions in php?

526


Does php need a closing tag?

545


What software is required for php?

535


Can you define an array argument as a reference type?

507


What is default session time and path in PHP. How to change it?

542