CODEWITHSUNDEEP
phpregexregex-group
user627341
user627341

Reputation: 79

Regex to match and extract North American phone numbers

I need to match and extract phone numbers from text ... phone numbers that are in this format:

589-845-2889

(589)-845-2889

589.845.2889

589 845 2889

5898452889

(589) 845 2889

The following operation matches the above with great accuracy:

preg_match_all("/(\()?\d{3}(?(1)\))[-. ]?\d{3}[-. ]?\d{4}/", $test, $result);

So I need to extend it to support international prefix, such as 1 or +1. Hence, it should also match 1(589) 845 2889, +1(589) 845 2889, 1589 845 2889, 1 589 845 2889, 15898452889 , etc.

Any help would be greatly appreciated.

Upvotes: 0

Views: 419

Answers (2)

The fourth bird
The fourth bird

Reputation: 163457

For the example data, you might use:

^(?:\+?1\h*)?(?:(\()?\d{3}(?(1)\))[-. ]?\d{3}[-. ]?\d{4})$

The pattern matches:

  • ^ Start of string

  • (?:\+?1\h?)? Optionally match 1 optionally prefixed by + or followed by a space

  • (\()?\d{3}(?(1)\)) Match 3 digits between parenthesis or not

  • [-. ]? Match optional - .

  • \d{3} Match 3 digits

  • [-. ]? Match optional - .

  • \d{4} Match 4 digits

  • $ End of string

Regex demo | Php demo

Example

$re = '/^(?:\+?1\h?)?(\()?\d{3}(?(1)\))([-. ]?)\d{3}\2\d{4}$/m';
$str = '589-845-2889
(589)-845-2889
589.845.2889
589 845 2889
5898452889
(589) 845 2889
1(589) 845 2889
+1(589) 845 2889
1589 845 2889
1 589 845 2889
15898452889
+1207 244 7002
+1 207 244 7002
(589) 845-2889
+1(589) 845-2889
1(589) 845-2889';
preg_match_all($re, $str, $matches);
print_r($matches[0]);

Output

Array
(
    [0] => 589-845-2889
    [1] => (589)-845-2889
    [2] => 589.845.2889
    [3] => 589 845 2889
    [4] => 5898452889
    [5] => (589) 845 2889
    [6] => 1(589) 845 2889
    [7] => +1(589) 845 2889
    [8] => 1589 845 2889
    [9] => 1 589 845 2889
    [10] => 15898452889
    [11] => +1207 244 7002
    [12] => +1 207 244 7002
)

Upvotes: 3

nice_dev
nice_dev

Reputation: 17805

Alternative approach:

You can convert all different types to 1 common syntax delimited by say .. Now, you can try for 2 checks.

  • If all are digits and the length is 10 or 11.
  • OR if it follows the format of +1.207.333.4444 or 207.333.4444 or +1(207).333.4444 or (207).333.4444.

Snippet:

<?php

function isValid($str){
    $str = preg_replace('/[.\-\s]/','.',$str);
    return preg_match('/^\d{10,11}$/', $str) === 1 || 
           preg_match('/^((\+?\d)?\.?(\d{3}|\(\d{3}\)))\.(\d{3})\.(\d{4})$/', $str) === 1;
}

Online Demo

Suggestion:

Instead of giving a simple textbox on the UI, give 3-4 blocks delimited by some text, say - or .. This way, processing them on the backend or adding javascript validation becomes easy.

.input_ph{
 width:35px;
}
<html>
<body>
<span>+</span><input type="textbox" class="input_ph" />&nbsp;&nbsp;&nbsp;
<span>-</span>&nbsp;&nbsp;&nbsp;
<span>(</span><input type="textbox" class="input_ph" />
<span>)</span>&nbsp;&nbsp;&nbsp;
<span>-</span>&nbsp;&nbsp;&nbsp;<input type="textbox" class="input_ph" />
&nbsp;&nbsp;&nbsp;
<span>-</span>&nbsp;&nbsp;&nbsp;<input type="textbox" class="input_ph" />
&nbsp;&nbsp;&nbsp;
</body>
</html>

Upvotes: 1

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