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nanpa validator php

Ivan Londono answered on December 9, 2022 Popularity 1/10 Helpfulness 8/10

answer nanpa validator php

nanpa validator php

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//Function to validate a US phone number based on NANPA regulations. 
function validPhone($phone) {
 
  $format_pattern = '/^(?:(?:\((?=\d{3}\)))?(\d{3})(?:(?<=\(\d{3})\))?[\s.\/-]?)?(\d{3})[\s\.\/-]?(\d{4})\s?(?:(?:(?:(?:e|x|ex|ext)\.?\:?|extension\:?)\s?)(?=\d+)(\d+))?$/';
  $nanpa_pattern = '/^(?:1)?(?(?!(37|96))[2-9][0-8][0-9](?<!(11)))?[2-9][0-9]{2}(?<!(11))[0-9]{4}(?<!(555(01([0-9][0-9])|1212)))$/';
 
  //Set array of variables to false initially
  $valid = array(
    'format' => false,
    'nanpa' => false,
    'ext' => false,
    'all' => false
  );
 
  //Check data against the format analyzer
  if(preg_match($format_pattern, $phone, $matchset)) {
    $valid['format'] = true;    
  }
 
  //If formatted properly, continue
  if($valid['format']) {
 
    //Set array of new components
    $components = array(
      'ac' => $matchset[1], //area code
      'xc' => $matchset[2], //exchange code
      'sn' => $matchset[3], //subscriber number
      'xn' => $matchset[4], //extension number
    );
 
    //Set array of number variants
    $numbers = array(
      'original' => $matchset[0],
      'stripped' => substr(preg_replace('[\D]', '', $matchset[0]), 0, 10)
    );
 
    //Now let's check the first ten digits against NANPA standards
    if(preg_match($nanpa_pattern, $numbers['stripped'])) {
      $valid['nanpa'] = true;
    }
 
    //If the NANPA guidelines have been met, continue
    if($valid['nanpa']) {
      if(!empty($components['xn'])) {
        if(preg_match('/^[\d]{1,6}$/', $components['xn'])) {
          $valid['ext'] = true;
        }
      }
      else {
        $valid['ext'] = true;
      }
    }
   
    //If the extension number is valid or non-existent, continue
    if($valid['ext']) {
      if(strlen($components['ac'].$components['xc'].$components['sn']) == 10) {
        $valid['all'] = true;
      }
    }
  }
  return $valid['all'];
}

Popularity 1/10 Helpfulness 8/10 Language php

Source: Grepper

Tags: php

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Contributed on Dec 09 2022

Ivan Londono

0 Answers Avg Quality 2/10

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