PHP Interview Questions
Questions Answers Views Company eMail

tel me any 2 regular expressions with example

Wipro,

1 2881

How can we extract string 'abc.com' from a string "http://info@abc.com" using regular expression of PHP

Wipro,

6 10897

How can use sys time in loop?

Fengate,

994




code to see the priview of the image which is being uploaded (after browising the image... just click priview ... how it will be visible...before uploading)

Satyam,

912

What is a procedure in php?

Wipro,

5 7249

how can i disable multiple user in the same password in my website using any scripts

1 1943

How can we get the browser properties using PHP?

Google, Pollux Softech,

4 5373

Is it necessary to use closing tag in php?sometime without closing tag things work.why?

ShopRite,

2 2942




What are the security measures we have to take for our site not to hack by others.

Infosys, Torque Infotech,

3 5644

What can I do by cakePHP?

4 9272

What types of images that PHP supports?

2 2457

List out some tools through which we can draw E-R diagrams for mysql.

2 2881

How can I retrieve values from one database server and store them in other database server using PHP?

1 2172

what is hidden variable? what is its difference with the normal variable...

Shine,

2 3634

if i give Limit for mysql query through php command line script like this for ex. $limit=500; $total_items = 1500; for($start=0;$start<$total_items;){ $command = "/usr/bin/php -q /home/sitename/public_html/admin/feedmanager/test.php feedid ".$_GET['feedid']." start ".$start." end ".$limit ; $start = $start+$limit; $command_result = system($command); } so it's execute command for 3 times so it give limit to sql query but if i have 27000 data so it takes long time? so my question is that is that any way from php command line script that i can use for collect all the data at once?

1107


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Un-Answered Questions { PHP }

Hello Friends,I am seeking for a job in php having 9 months. exp.Please suggest any company openings.

1032


Hi this is amul jani here, i complied my graduation in B.com stream.. but as career i looking for PHP language.. to get shape my career. so is that possible to enter in IT world.. for me how much scope of develop my career in this field.. amul jani

870


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

906


what are the differences between php and perl

988


What are Routines?

1169






How could I install codeignitor ?

1057


What is instantiation?

1027


what is mean by portal

822


What is mean tnq

284


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

718


What is polymorphism?

1373


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

879


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.

1136


What is a class in php programing?

1279


How to genrate report in wordpress cms

1099