100+ Core PHP interview questions | Core PHP question and answer- Just Crack Interview

Ques:- How can we destroy the session, how can we unset the variable of a session?

2 1121

Ques:- How can we optimize or increase the speed of a mysql select query?

2 6697

Ques:- How can we take a backup of a mysql table and how can we restore it. ?

2 4677

Ques:- How can we increase the execution time of a PHP script?

2 6429

Ques:- What is the maximum size of a file that can be uploaded using PHP and how can we change this?

2 8507

Ques:- How can we get the properties (size, type, width, height) of an image using PHP image functions?

2 1855

Ques:- How can we convert the time zones using PHP?

1 2270

Ques:- What is the purpose of the following files having extensions 1) .frm 2) .myd 3) .myi? What do these files contain?

2 3988

Ques:- What is the functionality of the function html entities?

2 2511

Ques:- What are the advantages and disadvantages of Cascading Style Sheets?

1 5618

Ques:- How can we find the number of rows in a result set using PHP?

2 2965

Ques:- How can we get second of the current time using date function?

2 3854

Ques:- How can I make a script that can be bilanguage (supports English, German)?

2 3100

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

2 4123

Ques:- What is the PHP predefined variable that tells the What types of images that PHP supports?

1 7452

Ques:- List out some tools through which we can draw E-R diagrams for mysql?

2 5840

Ques:- How can I know that a variable is a number or not using a JavaScript?

2 5612

Ques:- How many ways we can pass the variable through the navigation between the pages?

2 9894

Ques:- What is the difference between ereg_replace() and eregi_replace()?

2 8749

Ques:- What are the differences between PHP 3 and PHP 4 and PHP 5?

2 3932