public static function Unicode::strtolower

public static Unicode::strtolower($text)

Converts a UTF-8 string to lowercase.

Parameters

string $text: The string to run the operation on.

Return value

string The string in lowercase.

File

core/lib/Drupal/Component/Utility/Unicode.php, line 324

Class

Unicode
Provides Unicode-related conversions and operations.

Namespace

Drupal\Component\Utility

Code

public static function strtolower($text) {
  if (static::getStatus() == static::STATUS_MULTIBYTE) {
    return mb_strtolower($text);
  }
  else {
    // Use C-locale for ASCII-only lowercase.
    $text = strtolower($text);
    // Case flip Latin-1 accented letters.
    $text = preg_replace_callback('/\xC3[\x80-\x96\x98-\x9E]/', '\Drupal\Component\Utility\Unicode::caseFlip', $text);
    return $text;
  }
}

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Licensed under the GNU General Public License, version 2 and later.
Drupal is a registered trademark of Dries Buytaert.
https://api.drupal.org/api/drupal/core!lib!Drupal!Component!Utility!Unicode.php/function/Unicode::strtolower/8.1.x