Re: [PHP] Re: Regex for telephone numbers

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Re: Re: Regex for telephone numbers

On 12/31/2010 11:10 AM, ash@ashleysheridan.co.uk wrote:
> Erm, you say regex is overkill, then use one in your example!
>
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
>
> ----- Reply message -----
> From: "Al"
> Date: Fri, Dec 31, 2010 15:53
> Subject: [PHP] Re: Regex for telephone numbers
> To:,
>
>
>
> On 12/29/2010 7:12 PM, Ethan Rosenberg wrote:
>> Dear List -
>>
>> Thank you for all your help in the past.
>>
>> Here is another one....
>>
>> I would like to have a regex which would validate that a telephone number is
>> in the format xxx-xxx-xxxx.
>>
>> Thanks.
>>
>> Ethan
>>
>> MySQL 5.1 PHP 5 Linux [Debian (sid)]
>>
>
> Regex is over-kill.
>
> $phoneNum = preg_replace("%\D%", '', $phoneNum);//Remove everything except digits
>
> $phoneNum = ltrim($phoneNum,'1');//Remove leading 1s
>
> if(strlen($phoneValue) != 10)
> {
> throw new Exception("Phone number must be 10 digits, without leading a 1. Check
> your entry carefull");
> }
>

Save and use the resultant $phoneNum; It is all that needs to be saved and used.
Dashes, spaces and () are superfluous. Only the 10 digits are required for his
application.

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