PHP 规范化电话号码

Posted 2021-05-14

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&lt;?php
  $search_replace_mapping = array(
    // country prefix normalization
    '+00' =&gt; '+', '++' =&gt; '+',
    // country prefix is always 00
    '+' =&gt; '00',
    // funny user input goulash
    'i' =&gt; '1', 'I' =&gt; '1', 'l' =&gt; '1',
    'o' =&gt; '0', 'O' =&gt; '0',

    // ([^\diIloO\+]*)
    // ...brackets
    '(' =&gt; '', ')' =&gt; '',
    '[' =&gt; '', ']' =&gt; '',
    '[' =&gt; '', ']' =&gt; '',
    // slashes
    '/' =&gt; '', '\\\\' =&gt; '',
    // dashes
    '-' =&gt; '', '_' =&gt; '',
    // whitespaces
    ' ' =&gt; ''
  );

  function normalizeTelephoneNumber($telephone_number, $search_replace_mapping) {
    // fetch search and replace arrays
    $search = array_keys($search_replace_mapping);
    $replace = array_values($search_replace_mapping);

    // simple string replacement
    $telephone_number = str_replace($search, $replace, $telephone_number);

    // lets kick out all dutty stuff which is left...
    $telephone_number = preg_replace('~[^\d]~', '', $telephone_number);

    return $telephone_number;
  }

  function generateSqlReplaceStatement($telephone_number, $search_replace_mapping)
  {
    $s = '';
    $template = 'REPLACE(%s, \'%s\', \'%s\')';

    $i = 0;
    foreach ($search_replace_mapping as $search =&gt; $replace)
    {
      $s = sprintf($template, ($i == 0 ? '\''. $telephone_number .'\'' : $s), $search, $replace);
      $i++;
    }

    $s = 'SELECT '. $s .' AS normalized FROM Accommodation';

    return $s;
  }

  $numbers = array(
    '0049 03831 667 156',
    '+39 0471 / 975     642',
    '+0039 6757 - 3939 9393',
    '+49 (0) 3834 50 77 73',
    '+43 (i) 4m 4n idiOt',
    '+44 (0) 1234 \\ 55 55'
  );

  print_r($numbers);

  $numbers_clean = array();
  foreach ($numbers as $number)
  {
    $numbers_clean[] = normalizeTelephoneNumber($number, $search_replace_mapping);
  }

  print_r($numbers_clean);

  $sql = array();
  foreach ($numbers as $number)
  {
    $sql[$number] = generateSqlReplaceStatement($number, $search_replace_mapping);
  }

  print_r($sql);
?&gt;

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