function drupal_strtoupper

7.x drupal_strtoupper($text)
5.x drupal_strtoupper($text)
6.x drupal_strtoupper($text)
8.x drupal_strtoupper($text)

Uppercase a UTF-8 string.


$text: The string to run the operation on.

Return value

string The string in uppercase.

Related topics

5 calls to drupal_strtoupper()
DatabaseSchema_mysql::processField in drupal/includes/database/mysql/
Set database-engine specific properties for a field.
DatabaseSchema_sqlite::processField in drupal/includes/database/sqlite/
Set database-engine specific properties for a field.
DrupalHtmlToTextTestCase::testDrupalHtmlToTextBlockTagToNewline in drupal/modules/simpletest/tests/mail.test
Test that text separated by block-level tags in HTML get separated by (at least) a newline in the plaintext version.
drupal_ucfirst in drupal/includes/
Capitalizes the first letter of a UTF-8 string.
UnicodeUnitTest::helperTestStrToUpper in drupal/modules/simpletest/tests/unicode.test
1 string reference to 'drupal_strtoupper'
drupal_html_to_text in drupal/includes/
Transforms an HTML string into plain text, preserving its structure.


drupal/includes/, line 501
Provides Unicode-related conversions and operations.


function drupal_strtoupper($text) {
  global $multibyte;
  if ($multibyte == UNICODE_MULTIBYTE) {
    return mb_strtoupper($text);
  else {
    // Use C-locale for ASCII-only uppercase
    $text = strtoupper($text);
    // Case flip Latin-1 accented letters
    $text = preg_replace_callback('/\xC3[\xA0-\xB6\xB8-\xBE]/', '_unicode_caseflip', $text);
    return $text;