Junior PHP Developer Question:

Tell me how is it possible to parse a configuration file?

The function parse_ini_file() enables us to load in the ini file specified in filename, and returns the settings in it in an associative array.

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Tell me how can we determine whether a PHP variable is an instantiated object of a certain class?	Explain me what is the difference between $_FILES[‘userfile’][‘name’] and $_FILES[‘userfile’][‘tmp_name’]?