Phone Formats

phone_format.php

<?php

  function PhoneFormat($phone) {
    $prefix = '';
    $phone = preg_replace('/\D/', '', $phone);
    $dash = strlen($phone);

    if ($dash > 10) {
      if (strpos($phone, '10') === 0 || strpos($phone, '11') === 0) {
        $prefix = substr($phone, 0, 2);
        $phone = substr_replace($phone, '', 0, 2);
      } elseif (strpos($phone, '011') === 0) {
        $prefix = substr($phone, 0, 3);
        $phone = substr_replace($phone, '', 0, 3);
      } elseif (strpos($phone, '0') === 0 || strpos($phone, '1') === 0) {
        $prefix = substr($phone, 0, 1) . ' ';
        $phone = substr_replace($phone, '', 0, 1);
      }

      $dash = strlen($phone);
    }

    $segment = 4;
    while($dash > $segment) {
      $phone = substr_replace($phone, '-', $dash - $segment, 0);
      $dash = strpos($phone, '-');

      if ($segment === 4) { $segment = 3; }
    }

    if (substr_count($phone, '-') > 1) {
      $dash = strpos($phone, '-');
      $phone = '(' . substr_replace($phone, ') ', $dash, 1);

      if (strlen($prefix) === 0) {
        $prefix = '+';
      }
    }

    $phone = $prefix . $phone;
    return $phone;
  }
  
?>

phone_format_mx.php

<?php

  function PhoneFormatMX($phone) {
    $prefix = '';
    $phone = preg_replace('/\D/', '', $phone);
    $dash = strlen($phone);

    if ($dash > 10) {
      if (strpos($phone, '044') === 0 || strpos($phone, '045') === 0) {
        $prefix = substr($phone, 0, 3) . ' ';
        $phone = substr_replace($phone, '', 0, 3);
      } elseif (strpos($phone, '00') === 0 || strpos($phone, '01') === 0) {
        $prefix = substr($phone, 0, 2) . ' ';
        $phone = substr_replace($phone, '', 0, 2);
      }

      $dash = strlen($phone);
    }

    $segment = 4;
    while($dash > $segment) {
      $phone = substr_replace($phone, '-', $dash - $segment, 0);
      $dash = strpos($phone, '-');

      if ($segment === 4 && strlen($prefix) > 0) {
        if (strpos($phone, '55') !== 0 && strpos($phone, '33') !== 0 && strpos($phone, '81') !== 0) {
          $segment = 3;
        }
      } elseif ($segment === 4 && strlen($prefix) === 0 && strlen($phone) === 11) {
        if (strpos($phone, '55') !== 0 && strpos($phone, '33') !== 0 && strpos($phone, '81') !== 0) {
          $segment = 3;
        }
      }
    }

    if (substr_count($phone, '-') > 1) {
      $dash = strpos($phone, '-');
      $phone = '(' . substr_replace($phone, ') ', $dash, 1);

      if (strlen($prefix) === 0) {
        $prefix = '+';
      }
    }

    $phone = $prefix . $phone;
    return $phone;
  }
  
?>