function decode_entities in Drupal 6

Same name and namespace in other branches

1. 4 includes/unicode.inc \decode_entities()
2. 5 includes/unicode.inc \decode_entities()
3. 7 includes/unicode.inc \decode_entities()

Decodes all HTML entities (including numerical ones) to regular UTF-8 bytes.

Double-escaped entities will only be decoded once ("&amp;lt;" becomes "&lt;", not "<"). Be careful when using this function, as decode_entities can revert previous sanitization efforts (&lt;script&gt; will become <script>).

Parameters

$text: The text to decode entities in.

$exclude: An array of characters which should not be decoded. For example, array('<', '&', '"'). This affects both named and numerical entities.

Return value

The input $text, with all HTML entities decoded once.

9 calls to decode_entities()

db_connect in includes/database.pgsql.inc

Initialize a database connection.

drupal_html_to_text in includes/mail.inc

Transform an HTML string into plain text, preserving the structure of the markup. Useful for preparing the body of a node to be sent by e-mail.

filter_xss_bad_protocol in includes/bootstrap.inc

Processes an HTML attribute value and ensures it does not contain an URL with a disallowed protocol (e.g. javascript:)

format_rss_channel in includes/common.inc

Formats an RSS channel.

locale_string_is_safe in includes/locale.inc

Check that a string is safe to be added or imported as a translation.

... See full list

File

includes/unicode.inc, line 336

Code

function decode_entities($text, $exclude = array()) {
  static $html_entities;
  if (!isset($html_entities)) {
    include_once './includes/unicode.entities.inc';
  }

  // Flip the exclude list so that we can do quick lookups later.
  $exclude = array_flip($exclude);

  // Use a regexp to select all entities in one pass, to avoid decoding
  // double-escaped entities twice. The PREG_REPLACE_EVAL modifier 'e' is
  // being used to allow for a callback (see
  // http://php.net/manual/en/reference.pcre.pattern.modifiers).
  return preg_replace('/&(#x?)?([A-Za-z0-9]+);/e', '_decode_entities("$1", "$2", "$0", $html_entities, $exclude)', $text);
}