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<html> <head> <title>Using a recursive function to sum an integer set </title> </head> <body> <h1>Using a recursive function to sum an integer set</h1> <? function summation ($c) { if ($c != 0) : return $c + summation($c-1); endif; } $sum = summation(100); print "Summation = $sum"; ?> </body> </html>
Output:
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