从电话号码字符串中删除“+”或“0”

Question

i need in php a regular expression to remove from a string of telephone numbers the + or the 0 at the beginning of a number

i have this function to remove every not-number characters

ereg_replace("[^0-9]", "", $sPhoneNumber)

but i need something better, all these examples should be...

$sPhoneNumber = "[phone]"
$sPhoneNumber = "003999999999999"
$sPhoneNumber = "3999999999999"
$sPhoneNumber = "39 99999999999"
$sPhoneNumber = "+ 39 999 99999999"
$sPhoneNumber = "0039 99999999999"

... like this

$sPhoneNumber = "3999999999999"

any suggestions, thank you very much!

Answer 1

You can do this:

$result = preg_replace('~^[0\D]++|\D++~', '', $sPhoneNumber);