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How to convert a character to an ascii value?
What is the scope of a variable defined outside a function?
When viewing an html page in a browser, the browser often keeps this page in its cache. What can be possible advantages/disadvantages of page caching? How can you prevent caching of a certain page (please give several alternate solutions)?
How values in arrays are indexed?
What are form input html tags?
How to join multiple strings into a single string?
How to invoke a user function?
How to take a substring from a given string?
What is file upload?
How to create a table to store files?
How to open a file for reading?
How to get the total number of values in an array?
How to merge values of two arrays into a single array?
How to read a file in binary mode?
How to return a value back to the function caller?
