note 130613 added to function.fdiv

Subject: Compatibility for older PHP Text: Equivalent for versions before 8.0. Handles the sign of zero for INF results. <?php if (!function_exists('fdiv')) { function fdiv(float $a, float $b): float { if (is_nan($a) || is_nan($b)) return NAN; if ($b != 0.0) return $a / $b; if ($a == 0.0) return NAN; $check = function ($v) { if ($v > 0) return 1; if ($v < 0) return -1; return pack('d', (float)$v) === pack('d', 0.0) ? 1 : -1; }; return ($check($a) === $check($b)) ? INF : -INF; } } ?> ---- Server IP: 206.189.2.9 Probable Submitter: 178.17.2.163 ---- Manual Page -- https://php.net/manual/en/function.fdiv.php Edit -- https://main.php.net/note/edit/130613 Del: integrated -- https://main.php.net/note/delete/130613/integrated Del: useless -- https://main.php.net/note/delete/130613/useless Del: bad code -- https://main.php.net/note/delete/130613/bad+code Del: spam -- https://main.php.net/note/delete/130613/spam Del: non-english -- https://main.php.net/note/delete/130613/non-english Del: in docs -- https://main.php.net/note/delete/130613/in+docs Del: other reasons-- https://main.php.net/note/delete/130613 Reject -- https://main.php.net/note/reject/130613 Search -- https://main.php.net/manage/user-notes.php