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Showing content with the highest reputation on 12/20/2019 in all areas

  1. Barand
    ctype_digit() function fact ($x) { if (!ctype_digit("$x") ) { // CAVEAT: cast $x to string type return 'Please provide an integer'; } if($x <= 1) { return 1; } else { return $x * fact($x - 1); } }
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