What is the use of "ksort" in php?
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Specify pre-defined classes in php ?
What is $globals php?
How do you find the length of a string in php?
What is the PHP predefined variable that tells the What types of images that PHP supports?
What is the functionality of the functions strstr() and stristr()?
What is the difference between the include() and require() functions?
what is the diference between php4 and php5
2 Answers Tavant Technologies,
What is a procedure in php?
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 )
What does the scope of variables mean?
Is php front end or back end?
Why php is widely used?
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