PHP Interview Questions
Questions Answers Views Company eMail

what are Implode and Explode functions?

HCL,

8 17953

How can we register the variables into a Session?

HCL, Star Computers, Trikon Networks,

7 17431

What is the difference between the functions UNLINK and UNSET?

Silicon Biztech,

8 14112




What are the different types of Errors in PHP?

TCS, Cisco, Troop Software,

20 43735

What is register_globals in php?

HCL, Millennium, Castling IT, Intel Soft Solutions,

6 18143

How can we submit a form without a submit buttom?

IBM, A1 Technology,

12 11501

What types images that php supports?

1 5024

How do you format and output a number with leading zero's?

3 8209




When you will get the error "Cannot add header information"?

2 2979

How to install PHP with --mcrypt and --mhash?

1 4652

How can you access a COM object from a PHP page?

1 2459

How do you get the Browser information?

Life Infotech,

3 6169

How can you parse files that were not ending with .php by using Apache?

1 3397

what method is used to generate a random number?

4 4939

How do you develop your own PHP extension ?

2 3424


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Un-Answered Questions { PHP }

What is a class in php programing?

951


What is Different between Joomla And Magento?

1338


what is benefit of magento?

1121


am from coimbatore.am learning php&mysql. what will be the approx salary for me if i get a job in coimbatore.

646


What are Routines?

890


4 down vote favorite share [g+] share [fb] share [tw] I am developing my site using server side sessions using redis as backend for saving the session. Now the issue which is bothering me is of user leaving the website without logging out. I mean user simply closes the browser which causes the cookie to be deleted. Now session of that user still exists on the server and will not be used again as new login requires creating a new session due to security reasons. To avoid the case where hacker steals the old cookie and use it after user login again with same old session id. In essence user leaves the website without explicitly logging out and his session will be deleted after certain time limit of inaccessibility. I am thinking time limit of 30-60 minutes. Also with every new request from user his cookie will also be updated to keep track of when the user last time accessed the site. But nowadays, people let site remain open for long time without accessing it. For example users open facebook and gmail in new tabs and forget about them for 2-3 hours and still they are not asked to login again. Is letting a 2-3 hours old cooke access the session secure? My concern is someone steals user cookie and use it 2-3 hours later. Thinking on this topic has also forced me to question how facebook manages security if user can use a session where they are not accessing it for long periods of time and still they remain logged in. Or is it not secure for me to keep logged in when am not accessing the site session for longer period of time? It can be the case also there is some pinging mechanism using which sites keep track of user having their site open in a browser and when browser closes they are notified and can work accordingly. My website is a social network and needs all those security and usage features which a social network may need. I am new to web security and web development in general and may be the case where my above questions may seem a little basic. If you feel that is the case kindly point to some good reference where I can read and find answers to my question.

857


write a prog using insert,update,delete in this manner as output? name: phno. add button 1.name phno. edit button delete button 2.

464


What is polymorphism?

1091


sort term descripttion form, report and uery

691


What is different between software and app

244


i m a B.E,passed out few yrs bak failed to find good job due to less marks now thinkin of a career as PHP developer. is it a lucarative field and wat r career prospects; hv heard dat initial salary is very less bout 6k also most jobs r contrct jobs.pls guide me need ur valuable advice.pls hellppp!! thnx..

829


what is the current salary package in India for a PHP programmer who has 1.5 years experience

1518


What is session and Cokkies . How it works . tell some thing about Session_id()

630


discuss the issue of software theft in ghana and how it has affected the economy

545


how can i develop forum code? any one pleale help me on this question

493