How to get ip address of a server in php?
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Why delimiter is used in mysql?
Tell me how comfortable are you with writing html entirely by hand?
Explain the three different kinds of Arrays?
Explain the visibility of the property or method?
Difference between $message vs. $$Message in php.
How to call javascript function in php on button click?
What is cookie?
Is php class name case sensitive?
How to get the length of string?
Is not null mysql?
What is the difference between php 5 and php 7?
Write a function that takes "depth" as argument and return sum of node's data of that depth. For instance, (0) depth 0 / \ (10) (20) depth 1 / \ (40) (50) depth2 If I pass get_sum_by_depth(2) , it would return 90 (i.e. 40 + 50 )