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.

1994

What is final class and final method?

1060

What is the meaning of a persistent cookie?

1128

What is move_uploaded_file in php?

987

How to execute a function in php?

940

How to add 301 redirects in PHP?

902

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

886

In how many ways we can retrieve the data in the result set of mysql using php?

946

What is php oop?

1004

What is php regular expression?

1006

How to remove the new line character from the end of a text line?

994

What is the difference between substr() and strstr()?

1394

How to break a file path name into parts?

978

Is it possible multiple inheritance in php?

1027

Why many companies are switching their current business language to php? Where php basically used?

952