drupal_xml_parser_create

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includes/unicode.inc, строка 125

Версии
5 – 6
drupal_xml_parser_create(&$data)

Prepare a new XML parser.

This is a wrapper around xml_parser_create() which extracts the encoding from the XML data first and sets the output encoding to UTF-8. This function should be used instead of xml_parser_create(), because PHP 4's XML parser doesn't check the input encoding itself.

'Starting from PHP 5, the input encoding is
automatically detected, so that the encoding parameter specifies only the
output encoding.'

This is also where unsupported encodings will be converted. Callers should take this into account: $data might have been changed after the call.

Параметры

&$data The XML data which will be parsed later.

Возвращаемое значение

An XML parser object.

Код

<?php
function drupal_xml_parser_create(&$data) {
  // Default XML encoding is UTF-8
  $encoding = 'utf-8';
  $bom = FALSE;

  // Check for UTF-8 byte order mark (PHP5's XML parser doesn't handle it).
  if (!strncmp($data, "\xEF\xBB\xBF", 3)) {
    $bom = TRUE;
    $data = substr($data, 3);
  }

  // Check for an encoding declaration in the XML prolog if no BOM was found.
  if (!$bom && ereg('^<\?xml[^>]+encoding="([^"]+)"', $data, $match)) {
    $encoding = $match[1];
  }

  // Unsupported encodings are converted here into UTF-8.
  $php_supported = array('utf-8', 'iso-8859-1', 'us-ascii');
  if (!in_array(strtolower($encoding), $php_supported)) {
    $out = drupal_convert_to_utf8($data, $encoding);
    if ($out !== FALSE) {
      $encoding = 'utf-8';
      $data = ereg_replace('^(<\?xml[^>]+encoding)="([^"]+)"', '\\1="utf-8"', $out);
    }
    else {
      watchdog('php', 'Could not convert XML encoding %s to UTF-8.', array('%s' => $encoding), WATCHDOG_WARNING);
      return 0;
    }
  }

  $xml_parser = xml_parser_create($encoding);
  xml_parser_set_option($xml_parser, XML_OPTION_TARGET_ENCODING, 'utf-8');
  return $xml_parser;
}
?>
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