function check_url in Drupal 7

Same name and namespace in other branches

1. 8 core/includes/common.inc \check_url()
2. 4 includes/common.inc \check_url()
3. 5 includes/common.inc \check_url()
4. 6 includes/common.inc \check_url()

Strips dangerous protocols from a URI and encodes it for output to HTML.

Parameters

$uri: A plain-text URI that might contain dangerous protocols.

Return value

A URI stripped of dangerous protocols and encoded for output to an HTML attribute value. Because it is already encoded, it should not be set as a value within a $attributes array passed to drupal_attributes(), because drupal_attributes() expects those values to be plain-text strings. To pass a filtered URI to drupal_attributes(), call drupal_strip_dangerous_protocols() instead.

See also

drupal_strip_dangerous_protocols()

Related topics

17 calls to check_url()

CommentTokenReplaceTestCase::testCommentTokenReplacement in modules/comment/comment.test

Creates a comment, then tests the tokens generated from it.

comment_tokens in modules/comment/comment.tokens.inc

Implements hook_tokens().

CommonURLUnitTest::testLXSS in modules/simpletest/tests/common.test

Confirm that invalid text given as $path is filtered.

CommonXssUnitTest::testBadProtocolStripping in modules/simpletest/tests/common.test

Check that harmful protocols are stripped.

format_rss_channel in includes/common.inc

Formats an RSS channel.

... See full list

File

includes/common.inc, line 1451

Common functions that many Drupal modules will need to reference.

Code

function check_url($uri) {
  return check_plain(drupal_strip_dangerous_protocols($uri));
}