您可以删除不是数字或小数点的任何字符,并使用解析该字符floatval
:
$number = 1200.00;
$parsed = floatval(preg_replace('/[^\d.]/', '', number_format($number)));
var_dump($number === $parsed); // bool(true)
并且如果数字不.
为小数点:
function parse_number($number, $dec_point=null) {
if (empty($dec_point)) {
$locale = localeconv();
$dec_point = $locale['decimal_point'];
}
return floatval(str_replace($dec_point, '.', preg_replace('/[^\d'.preg_quote($dec_point).']/', '', $number)));
}