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<?php // Recursive function to return nth Fibonacci number function fibonacci($n) { if ($n == 0) return 0; else if ($n == 1) return 1; else return fibonacci($n - 1) + fibonacci($n - 2); } // Number of terms $n = 10; echo "Fibonacci Series up to $n terms:<br>"; for ($i = 0; $i < $n; $i++) { echo fibonacci($i) . " "; } ?>