PHP Questions asked in Interview

• What is the use of obj_start()?
  
  
• Difference between mysql_connect and mysql_pconnect?
  
  
• What is the difference between Split and Explode?
  
  
• What is the difference between session_register and $_session?
  
  
• How i can make a chat page in php in simple?
  
  
• Explain about the $_GET variable of PHP?
  
  
• How do you capture audio/video in PHP?
  
  
• How can I maintain the count of how many persons have hit my site?
  
  
• Describe about PHP error and logging information?
  
  
• How To Write the FORM Tag Correctly for Uploading Files?
  
  
• How would you initialize your strings with single quotes or double quotes?
  
  
• How to prevent form hijacking in PHP?
  
  
• Where does the PHP session stored, either client side or server side?
  
  
• Would I use print "$a dollars" or "{$a} dollars" to print out the amount of dollars in this example?
  
  
• What are new features that are in added in PHP5?
  
  
• What is difference between mysql_connect and mysql_pconnect?
  
  
• How do download in php ?
  
  
• How to handle drop down box change event without refreshing page?
  
  
• What is difference between require_once(), require(), include()? Because above three function usefully use to call a file in another file.
  
  
• What are the different tables present in MySQL? Which type of table is generated when we are creating a table in the following syntax: create table employee(eno int(2),ename varchar(10))?
  
  
• How can we submit a form without a submit button?
  
  
• What are the valid values for xlink:actuate and xlink:show?
  
  
• What Is a Persistent Cookie?
  
  
• What is meant by urlencode and urldecode?
  
  
• I am trying to assign a variable the value of 0123, but it keeps coming up with a different number, what’s the problem?
  
  
• Which will execute faster on php POST or GET? Explain
  
  
• How i will check that user is, logged in or not. i want to make it a function and i want to use in each page and after login i want to go in current page(same page. where i was working)?
  
  
• How do we know browser properties?
  
  
• What is difference between mysql_fetch_array(),mysql_fetch_row() and mysql_fetch_object() please insert with example?
  
  
• What is meant by PEAR in php?
  
  
• Explain about PHP filter and why it should be used?
  
  
• How can I maintain the count of how many persons have hit my site?
  
  
• Explain about looping in PHP?
  
  
• How to add multiple categories through PHP?
  
  
• Name and explain five of the PHP error constants?
  
  
• What is the difference between mysql_fetch_object and mysql_fetch_array?
  
  
• What is the use of sprintf() function?
  
  
• difference between require() and include()
  
  
• What is the difference between echo and print statement?
  
  
• What does the URI used as an XML namespace name point to?