phone number check

[buducom]

i am looking for a function or ereg
to check phone, cell, fax numbers for international format to send later to a gateway

for example i need 4498343355
although somebody puts in [phone]

[drawmack]

functin isIntlNum($num) {
$num = eregi_replace("+| ",""$num);
return is_numeric($num);
}

[andymoo]

After validating it is a valid number I use this on a script before parsing anyhing through our gateway:

$mobile2check= ereg_replace(" ","",$mobile2check);
$mobile2check= ereg_replace("^{0","",$mobile2check);}
$mobile2check= ereg_replace("^{44","",$mobile2check);}

That should leave you with ten characters as a string length on a UK mobile number.

You could then run that against data from http://www.oftel.gov.uk/ind_info/numbering/download.htm to find out which network the number is subscribed to should you need to take it that step further.

Hope that helps.