我正在尝试将大量数字转换为+/- NNN.NNN的特定格式。
所以,如果我有这些数字:
$numbers1 = array(-1.23, 0.3222, 10, 5.54);
我希望他们的最终格式是
$numbers2 = array(-001.023, +000.322, +010.000, +005.054);
我正在尝试这样做:
foreach ($numbers1 as $n) {
$fnum = abs(number_format((float)$n, 3, '.', ''));
if ($fnum>0 && $fnum<10) {
$fnum = '00'.$fnum;
} else if ($fnum >= 10 && $fnum<100) {
$fnum = '0'.$fnum;
}
if ($n>0) $fnum = '+'.$fnum;
if ($n<0) $fnum = '-'.$fnum;
if ($n == 0) $fnum = '+000.000';
$numbers2[] = $fnum;
}
这是错误的,我只是不知道该如何使用。
最佳答案
尝试使用 sprintf()
$numbers2[] = sprintf("%+07.3f", $fnum);