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<?php function add ($v1,$v2) { $v[] = (string) $v1; $v[] = (string) $v2; foreach ($v as $val) { $match = array(); preg_match('/\.(\d*)/',$val,$match); if (isset($match[1])) { $dec[] = strlen($match[1]); } else { $dec[] = 0; } } var_dump(bcadd($v[0],$v[1],max($dec))); } add(10.756,10.98324534); add(10,10); add(10.756,10.9); add(10.756,10.); add(10.756,10);
Output for git.master, git.master_jit, rfc.property-hooks
string(11) "21.73924534" string(2) "20" string(6) "21.656" string(6) "20.756" string(6) "20.756"

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