Junior PHP Developer Question:

Tell me what is the difference between Exception::getMessage and Exception::getLine?

Exception::getMessage lets us getting the Exception message and Exception::getLine lets us getting the line in which the exception occurred.

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Suppose the variable $var1 is set to 10 and the $var2 is set to the character var1, what’s the value of $$var2?	Tell me what are the correct and the most two common way to start and finish a PHP block of code?