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Language/Type: PHP recursion

Write a recursive function named print_stars that accepts an integer parameter $n and prints $n occurrences of the "*" character to the console.

For example, the call of print_stars(5);should print *****. If passed a negative value, your function should throw an Exception with the message, "Error: argument must be non-negative."


  • Do not use any loops; you must use recursion.
Function: Write a PHP function as described, not a complete program.

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