PHP - 使用正则表达式更改电话号码格式

Question

I'm trying to figure out how to convert a phone number in the format
+18761234567
into
876-123-4567
using a replace Regex.

Answer 1

I think this should work

preg_replace('/^\+1(\d{3})(\d{3})(\d{4})$/i', '$1-$2-$3', '+18761234567');

I'm assuming that the +1 is constant and then use the \\d shortcut to match decimal characters. The value in {} is the number of characters to match.

Answer 2

Also, there is a Regexp Library on the Internet. It may be of help.

Search for 'phone':

http://www.regexlib.com/Search.aspx?k=phone&c=-1&m=-1&ps=20

Answer 3

I know it's not regex but this also works :-)

$num = '+18761234567';
$formatted = substr($num, 2, 3).'-'.substr($num, 5, 3).'-'.substr($num, 8);

Answer 4

这假设开头要忽略2个字符。

preg_replace("/([0-9a-zA-Z+]{2})([0-9a-zA-Z]{3})([0-9a-zA-Z]{3})([0-9a-zA-Z]{4})/", "$2-$3-$4", '+18761234567');