PHP Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

PHP Interview Questions

Questions Answers Views Company eMail

Tell me is it possible to remove the html tags from data?

903

Tell me what is the difference between ereg_replace() and eregi_replace()?

1147

What is the main difference between require() and require_once()?

1006

Tell me is it possible to protect special characters in a query string?

910

Tell me how to get the value of current session id?

943

Tell me what is the use of mysql_real_escape_string() function?

992

Tell me how to strip whitespace (or other characters) from the beginning and end of a string?

974

Tell me what types of loops exist in php?

1130

How can you pass a variable by reference?

990

How can we display the output directly to the browser?

989

Tell me how a constant is defined in a php script?

932

How can we define a variable accessible in functions of a php script?

999

What is the use of "ksort" in php?

946

Do you know when sessions ends?

1025

What are the three classes of errors that can occur in php?

1024

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Un-Answered Questions { PHP }

What library is used for pdf in php?

1047

How is the ternary conditional operator used in php?

1005

Explain how can we increase the execution time of a php script?

1005

What is static variable in php?

1089

How is it possible to know the number of rows returned in the result set?

1174

What does the initials of php stand for?

961

What are the different errors in php?

997

How can we check the value of a given variable is alphanumeric?

990

Why php was called as personal home page?

972

What function should you use to join array elements with a glue string?

975

What is Gd PHP?

978

Can we run php in apache tomcat?

973

What are the options to transfer session ids?

1110

Why json is used in php?

1001

When viewing an html page in a browser, the browser often keeps this page in its cache. What can be possible advantages/disadvantages of page caching? How can you prevent caching of a certain page (please give several alternate solutions)?

977

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