Write a program to find a string is palindrome or not?
How long does a session last in php?
What is difference between required and require_once in php?
How to pass an argument to a function?
What is the difference between php and javascript?
What and How possible injection in PHP and mysql?
What is mysql_fetch_object?
What is the difference between single quoted string and double quoted string?
Tell me how is the ternary conditional operator used in php?
What is form submission?
What’s the special meaning of __sleep and __wakeup?
What is pdo in php why use?
Binary tree question - Node has numeric data (int) The function takes depth as argument and sum all the value of the node of the depth. For instance, (0) depth 0 / \ 10 20 depth 1 / \ / \ 40 50 60 70 depth 2 so if you pass get_sum(2), you would return 220 which is 40+50+60+70 (sum of depth2) write the function.