function check_plain

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7 bootstrap.inc check_plain($text)
4.6 bootstrap.inc check_plain($text)
4.7 bootstrap.inc check_plain($text)
5 bootstrap.inc check_plain($text)
6 bootstrap.inc check_plain($text)
8 bootstrap.inc check_plain($text)

Encodes special characters in a plain-text string for display as HTML.

Also validates strings as UTF-8 to prevent cross site scripting attacks on Internet Explorer 6.

Parameters

$text: The text to be checked or processed.

Return value

An HTML safe version of $text, or an empty string if $text is not valid UTF-8.

See also

drupal_validate_utf8()

Related topics

185 calls to check_plain()
aggregator_block_view in modules/aggregator/aggregator.module
Implements hook_block_view().
aggregator_categorize_items in modules/aggregator/aggregator.pages.inc
Form constructor to build the page list form.
aggregator_form_feed in modules/aggregator/aggregator.admin.inc
Form constructor for adding and editing feed sources.
block_admin_display_form in modules/block/block.admin.inc
Form constructor for the main block administration form.
block_form_user_profile_form_alter in modules/block/block.module
Implements hook_form_FORM_ID_alter() for user_profile_form().

... See full list

12 string references to 'check_plain'
aggregator_form_opml in modules/aggregator/aggregator.admin.inc
Form constructor for importing feeds from OPML.
block_admin_configure in modules/block/block.admin.inc
Form constructor for the block configuration form.
drupal-6.bare.database.php in modules/simpletest/tests/upgrade/drupal-6.bare.database.php
Bare installation of Drupal 6.17, for test purposes.
drupal-6.filled.database.php in modules/simpletest/tests/upgrade/drupal-6.filled.database.php
Filled installation of Drupal 6.17, for test purposes.
filter_admin_format_form in modules/filter/filter.admin.inc
Form constructor for the text format add/edit form.

... See full list

File

includes/bootstrap.inc, line 1565
Functions that need to be loaded on every Drupal request.

Code

function check_plain($text) {
  return htmlspecialchars($text, ENT_QUOTES, 'UTF-8');
}