PHP preg_match for validating 10 digit mobile number

Question

I am trying to validate 10 digits mobile number using PHP function preg_match. The below code does not produce any output.

Is it the regex wrong? or I am using it incorrectly.

I was expecting Hi True in the output. if it matches or Hi False if it does not match.

<?php
$value = '9987199871';
$mobileregex = "/^[1-9][0-9]{10}$/" ;  
echo "Hi " . preg_match($mobileregex, $value) === 1; // @debug
?>

regex taken from https://stackoverflow.com/a/7649835/4050261

Tim Biegeleisen · Accepted Answer · 2017-11-12T09:53:54.267

7

The regex you stated will match eleven digits, not ten. Since all Indian mobile numbers start with 9,8,7, or 6, we can use the following regex:

^[6-9][0-9]{9}$

Here is your code snippet updated:

$value = '9987199871';
$mobileregex = "/^[6-9][0-9]{9}$/" ;  
echo "Hi " . preg_match($mobileregex, $value) === 1;

Note that the above regex is still probably far from the best we could do in terms of validation, but it is at least a start.

edited Nov 12 '17 at 09:53

answered Nov 12 '17 at 09:49

Tim Biegeleisen

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I am validating Indian Mobile Number. – Adarsh Madrecha Nov 12 '17 at 09:51
Thanks for pointing out. Regex suggested in this answer. - https://stackoverflow.com/a/3813226/4050261 – Adarsh Madrecha Nov 12 '17 at 09:58
1

Except that it appears to be wrong [according to this Wikipedia page](https://en.m.wikipedia.org/wiki/Mobile_telephone_numbering_in_India) which states that Indian cell numbers can also begin with 6. – Tim Biegeleisen Nov 12 '17 at 10:05
6 is used for the pager. Thanks for pointing out this. Will use your method. – Adarsh Madrecha Nov 12 '17 at 10:08
@AdarshMadrecha Feel free to page me if you have a follow up question :-) – Tim Biegeleisen Nov 12 '17 at 10:10

Sudheesh S Babu · Answer 2 · 2019-06-28T05:32:43.050

The following code snippet will check if the mobile number digits are within 10-15 digits including '+' at the start and followed by a non-zero first digit.

Regular expression

"/^[+]?[1-9][0-9]{9,14}$/"

Code snippet

// Validation for the mobile field.
function validateMobileNumber($mobile) {
  if (!empty($mobile)) {
    $isMobileNmberValid = TRUE;
    $mobileDigitsLength = strlen($mobile);
    if ($mobileDigitsLength < 10 || $mobileDigitsLength > 15) {
      $isMobileNmberValid = FALSE;
    } else {
      if (!preg_match("/^[+]?[1-9][0-9]{9,14}$/", $mobile)) {
        $isMobileNmberValid = FALSE;
      }
    }
    return $isMobileNmberValid;
  } else {
    return false;
  }
}

^ symbol of the regular expression denotes the start
[+]? ensures that a single(or zero) + symbol is allowed at the start
[1-9] make sure that the first digit will be a non zero number
[0-9]{9,14} will make sure that there is 9 to 14 digits
$ denotes the end

Milan Krushna · Answer 3 · 2018-04-23T12:15:37.103

1

$mob = "9513574562";
if(preg_match("/^\d+\.?\d*$/",$mob) && strlen($mob)==10){

echo 1;

}else{

 echo 0;

}

preg_match() checking it is integer or not and in strlen() it is checking no of digit in this string. If 2 condition satisfy then it is a 10 digit valid mobile no

edited Apr 23 '18 at 12:15

answered Apr 23 '18 at 09:47

Milan Krushna

317
2
5

preg_match() checking it is integer or not and in strlen() it is checking no of digit in this string. If 2 condition satisfy then it is a 10 digit valid mobile no . – Milan Krushna Apr 23 '18 at 10:19
Thanks @Milan Krushna but I meant editing your answer – Ignacio Ara Apr 23 '18 at 10:30
1

I meant that you should edit your answer adding the explanation so that others users read it and vote it. Perhaps the question is validated and you'll get points – Ignacio Ara Apr 23 '18 at 10:41
what is the explanation should I add for this answer? – Milan Krushna Apr 23 '18 at 10:44
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/169582/discussion-between-milan-krushna-and-ignacio-ara). – Milan Krushna Apr 23 '18 at 11:02

score 0 · Answer 4 · answered Sep 23 '20 at 13:01

0

for pakistani mobile number the regex code will be the following

^[9][2][3][0-9]{9}$

answered Sep 23 '20 at 13:01

Hassan Qasim

463
5
5

Why do you put single digit in character class? That doesn't make sense. – Toto Sep 23 '20 at 14:04
because we needed 923 fixed digits in front 3 places – Hassan Qasim Sep 28 '20 at 08:18
First 3 digits must be 923 – Hassan Qasim Sep 28 '20 at 08:18
So, `^923[0-9]{9}$` matches the same thing and is more readable. But this doesn't answer the question. – Toto Sep 28 '20 at 08:26

PHP preg_match for validating 10 digit mobile number

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