I want to remove last digit from decimal number in PHP. Lets say I have 14.153. I want it to be 14.15. I will do this step till my number is no longer decimal.
I think this should work:
<?php
$num = 14.153;
$strnum = (string)$num;
$parts = explode('.', $num);
// $parts[0] = 14;
// $parts[1] = 153;
$decimalPoints = strlen($parts[1]);
// $decimalPoints = 3
if($decimalPoints > 0)
{
for($i=0 ; $i<=$decimalPoints ; $i++)
{
// substring($strnum, 0, 0); causes an empty result so we want to avoid it
if($i > 0)
{
echo substr($strnum, 0, '-'.$i).'<br>';
}
else
{
echo $strnum.'<br>';
}
}
}
?>
echo round(14.153, 2); // 14.15
第二个舍入参数设置位数。
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