Re: Phone number validation
Posted: Fri Oct 05, 2012 12:37 pm
if (!empty($contact_phone)) {
if (!preg_match('#^9[1236]{1}[0-9]{7}$#', $number)) {
$errors[] = "Phone number must be 9 numbers long and must start with 91, 92, 93 or 96.";
}
}
so let me see if I understood that.the first digit is 9 the second can be 1, 2, 3 or 6 that {1} is basically saying that is only one option.
the rest the numbers can be from 0 to 9 and is total of 7
right?
Let's complicate things up a bit
What about land phones
in general the first 3 numbers tell you the place you caliing and they all start with the number 2, but there are two who only have 2 digits that tell you the zone.
like this
21 - indicativo de Lisboa 22 - indicativo do Porto 231 - indicativo da Mealhada 232 - indicativo de Viseu 233 - indicativo da Figueira da Foz 234 - indicativo de Aveiro 235 - indicativo de Arganil 236 - indicativo de Pombal 238 - indicativo de Seia 239 - indicativo de Coimbra 241 - indicativo de Abrantes 242 - indicativo de Ponte de Sor 243 - indicativo de Santarém 244 - indicativo de Leiria 245 - indicativo de Portalegre 249 - indicativo de Torres Novas 251 - indicativo de Valença 252 - indicativo de Vila Nova de Famalicão 253 - indicativo de Braga 254 - indicativo do Peso da Régua 255 - indicativo de Penafiel 256 - indicativo de São João da Madeira 258 - indicativo de Viana do Castelo 259 - indicativo de Vila Real 261 - indicativo de Torres Vedras 262 - indicativo das Caldas da Rainha 263 - indicativo de Vila Franca de Xira 265 - indicativo de Setúbal 266 - indicativo de Évora 268 - indicativo de Estremoz 269 - indicativo de Santiago do Cacém 271 - indicativo da Guarda 272 - indicativo de Castelo Branco 273 - indicativo de Bragança 274 - indicativo de Proença-a-Nova 275 - indicativo da Covilhã 276 - indicativo de Chaves 277 - indicativo de Idanha-a-Nova 278 - indicativo de Mirandela 279 - indicativo de Torre de Moncorvo 281 - indicativo de Tavira 282 - indicativo de Portimão 283 - indicativo de Odemira 284 - indicativo de Beja 285 - indicativo de Moura 286 - indicativo de Castro Verde 289 - indicativo de Faro 291 - indicativo do Funchal 292 - indicativo da Horta 295 - indicativo de Angra do Heroísmo 296 - indicativo de Ponta Delgadahttp://telefone.awardspace.info/
Using the expression Jacek wrote
it could be done like this
my doubt is that
if here (!preg_match('#^9[1236]{1}[0-9]{7}$#', $number)) I use (!preg_match('#^2[3132...]{2}[0-9]{7}$#', $number)) that 3132 won't be considered as 3 1 3 2 instead of 31, 32
Well this can be considered as being a rule and wjat about the exception?
well I guess this one is easy
(!preg_match('#^2[12]{1}[0-9]{7}$#', $number))
EDIT1: thinking better if I use
(!preg_match('#^2[3132...]{2}... will it pick 31 32 right?