regex phone number validation with PHP

Question

This is another question about a previous question I had asked yesterday. I want user to be allowed to type US phone numbers in the following formats.

(800)-555-1212

800-555-1212

and have it only check the database for numbers 8005551212

I've seen that regex like /^[\+]?([0-9]*)\s*$?\s*([0-9]{3})?\s*$?[\s\-\.]*([0-9]{3})[\s\-\.]*([0-9]{4})[a-zA-Z\s\,\.]*[x\#]*[a-zA-Z\.\s]*([\d]*)/

may work but I'm not certain how to implement it into the code from the link I provided

I'm new to php and know nothing about regex. Any help is appreciated.

Two things I will never bother validating by format, emails and phone numbers. If it's imperative that the user be contactable by phone, they'll get their number right — Phil, Aug 08 '13 at 07:05
There are many answers.Check these links http://stackoverflow.com/questions/3357675/validating-us-phone-number-with-php-regex http://stackoverflow.com/questions/11705507/php-validation-of-us-phone-numbers http://stackoverflow.com/questions/123559/a-comprehensive-regex-for-phone-number-validation — 웃웃웃웃웃, Aug 08 '13 at 07:05
@YourCommonSense I tagged it with mysql and mysqli because it was part of a project that uses mysql I posted the link in the question. — Ben P. Dorsi-Todaro, Aug 08 '13 at 07:27
@BenP.Dorsi-Todaro But it hasn't anything to do with the question. Keep in mind, that those tags are for the context of the question. — dan-lee, Aug 08 '13 at 07:30
Well if it would be for the movie tickets project you'd tag it with 'tickets' and 'movie'? — Your Common Sense, Aug 08 '13 at 07:32

Donatas Navidonskis · Answer 1 · 2015-09-15T09:35:28.160

11

This function validate a phone number, return true if it validate and false if invalid. This function very simple i was wrote to.

    /**
     * @param $number
     *
     * @return bool
     */
    function validatePhoneNumber($number) {
        $formats = [
            '###-###-####', '####-###-###',
            '(###) ###-###', '####-####-####',
            '##-###-####-####', '####-####', '###-###-###',
            '#####-###-###', '##########', '#########',
            '# ### #####', '#-### #####'
        ];

        return in_array(
            trim(preg_replace('/[0-9]/', '#', $number)),
            $formats
        );
    }

edited Sep 15 '15 at 09:35

answered Aug 08 '13 at 07:10

Donatas Navidonskis

309
2
11

Be careful. It is not universal validator. It does not handle variants starting with `00` or `+` sign. – mikep Nov 23 '17 at 11:25
@mikep why you just not add "00 XXX" or "+ XX" ? – Donatas Navidonskis Nov 24 '17 at 12:20
@DonatasNavidonskis because of you already have 12 items in array and to support `+` and `00` variants I should add 2*12 new items = together 36 items which is not so handy. – mikep Nov 24 '17 at 14:31
@mikep yeah, but this was one of the simple solutions, if you have more complex situation, sure this method is not fit for that situation. – Donatas Navidonskis Nov 25 '17 at 16:21

score 0 · Answer 2 · answered Aug 08 '13 at 07:10

if javascript is ok can go with

<script type="text/javascript">
function matchClick() {
  var re = new RegExp("Your regex here");
  if (document.formname.phone.value.match(re)) {
     alert("Ok");
     return true;
  } else {
     alert("Not ok");
     return false;
  }
} 
</script>

call this function onsubmit of form or onblur of textbox

If you have doubt about your regex you can validate it at http://www.regular-expressions.info/javascriptexample.html

score 0 · Answer 3 · answered Aug 08 '13 at 07:10

0

You can use this pattern

$?\d{3,3}$?-\d{3,3}-\d{4,4}

answered Aug 08 '13 at 07:10

Taleh Ibrahimli

750
4
13
29

score 0 · Answer 4 · answered Aug 08 '13 at 07:57

0

Try this,

<?php
    $t='/\(?[2-9][0-8][0-9]\)?[-. ]?[0-9]{3}[-. ]?[0-9]{4}/';
    $arr=preg_match($t,'(800)-555-1212',$mat);
    $arr=preg_match($t,'800-555-1212',$mat);
    print_r($mat);
?>

Tested here

answered Aug 08 '13 at 07:57

Rohan Kumar

40,431
11
76
106

Works but would need to be $arr=preg_match($t,'8005551212',$mat); not with dashes I'm going to going with @Donatas Navidonskis approach. – Ben P. Dorsi-Todaro Aug 08 '13 at 11:43

score 0 · Answer 5 · answered Jan 08 '14 at 15:30

Re: Rohan Kumar's solution

<?php
$t='/\(?[2-9][0-8][0-9]\)?[-. ]?[0-9]{3}[-. ]?[0-9]{4}/';
$arr=preg_match($t,'(800)-555-1212',$mat);
$arr=preg_match($t,'800-555-1212',$mat);
print_r($mat);
?>

It does address the issue of fake phone numbers such as 800-123-2222. Real phone numbers have a first digit of at least "2". While the other solutions do the format correctly, they don't address the issue of people putting in phone numbers like 800-000-1234, which would be correct in the other solutions provided.

regex phone number validation with PHP

5 Answers5

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