PHP custom function round_pad_zero rounds decimal places and pads with zeros
Release： 2016-07-25 08:57:46
Original
1401 people have browsed it
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-
- /**
- * Decimal places rounded and zero padded
- * by bbs.it-home.org
- */
- function round_pad_zero($num, $precision)
- {
- if ($precision < 1) {
- return round($num, 0);
- }
- $r_num = round($num, $precision);
- $num_arr = explode('.', "$r_num");
- if (count($num_arr) == 1) {
- return "$r_num" . '.' . str_repeat('0', $precision);
- }
- $point_str = "$num_arr[1]";
- if (strlen($point_str) < $precision) {
- $point_str = str_pad($point_str, $precision, '0');
- }
- return $num_arr[0] . '.' . $point_str;
- }
- //调用示例
- echo round_pad_zero(3223342.506, 4);
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