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

PHP Interview Questions

Questions Answers Views Company eMail

What is the use of header() function in php?

1104

Tell me how can we display information of a variable and readable by human with php?

1103

What is the difference between exception::getmessage and exception::getline?

1018

What's the difference between __sleep and __wakeup?

1147

What is the goto statement useful for?

1074

In php, objects are they passed by value or by reference?

1004

What is the most convenient hashing method to be used to hash passwords?

1098

Explain what is the difference between for and foreach?

1133

What is the use of explode() function?

1118

What is the difference between the functions strstr() and stristr()?

1045

Is it possible to remove the html tags from data?

979

Tell me how can you pass a variable by reference?

1019

Tell me will a comparison of an integer 12 and a string "13" work in php?

1129

What is the use of the function 'imagetypes()'?

1086

Tell me what is the main difference between require() and require_once()?

1036

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Un-Answered Questions { PHP }

What is the difference between htmlentities() and htmlspecialchars()?

1068

What is the use of strpos in php?

1114

How to retrieve values out of an array?

1110

How does csrf token work?

1084

Explain the difference between session and cookies in php?

1037

Do csrf tokens expire?

1068

Explain me what are the main error types in php and how do they differ?

1059

What the difference between the 'bitwise and' operator and the 'logical and' operator?

1039

What is the actually used php version?

1197

What are the different errors in php?

1056

Explain some of the php string functions?

1030

What is warning – “cannot modify header information – headers already sent”?

1130

how to track user logged out or not? when a user is idle?

969

What is php session start?

1086

What type of comments are supported by PHP.

1038

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