class Unicode

Provides Unicode-related conversions and operations.

Hierarchy

• class \Drupal\Component\Utility\Unicode

Related topics

Utility classes and functions

Overview of utility classes and functions for developers.

File

core/lib/Drupal/Component/Utility/Unicode.php, line 10

Namespace

Drupal\Component\Utility

Members

Name	Modifiers	Type	Description
Unicode::$status	protected static	property	Holds the multibyte capabilities of the current environment.
Unicode::caseFlip	public static	function	Flip U+C0-U+DE to U+E0-U+FD and back. Can be used as preg_replace callback.
Unicode::check	public static	function	Checks for Unicode support in PHP and sets the proper settings if possible.
Unicode::convertToUtf8	public static	function	Converts data to UTF-8.
Unicode::encodingFromBOM	public static	function	Decodes UTF byte-order mark (BOM) into the encoding's name.
Unicode::getStatus	public static	function	Gets the current status of unicode/multibyte support on this environment.
Unicode::lcfirst	public static	function	Converts the first character of a UTF-8 string to lowercase.
Unicode::mimeHeaderDecode	public static	function	Decodes MIME/HTTP encoded header values.
Unicode::mimeHeaderEncode	public static	function	Encodes MIME/HTTP headers that contain incorrectly encoded characters.
Unicode::PREG_CLASS_WORD_BOUNDARY		constant	Matches Unicode characters that are word boundaries.
Unicode::setStatus	public static	function	Sets the value for multibyte support status for the current environment.
Unicode::STATUS_ERROR		constant	Indicates an error during check for PHP unicode support.
Unicode::STATUS_MULTIBYTE		constant	Indicates that full unicode support with the PHP mbstring extension is being used.
Unicode::STATUS_SINGLEBYTE		constant	Indicates that standard PHP (emulated) unicode support is being used.
Unicode::strcasecmp	public static	function	Compares UTF-8-encoded strings in a binary safe case-insensitive manner.
Unicode::strlen	public static	function	Counts the number of characters in a UTF-8 string.
Unicode::strpos	public static	function	Finds the position of the first occurrence of a string in another string.
Unicode::strtolower	public static	function	Converts a UTF-8 string to lowercase.
Unicode::strtoupper	public static	function	Converts a UTF-8 string to uppercase.
Unicode::substr	public static	function	Cuts off a piece of a string based on character indices and counts.
Unicode::truncate	public static	function	Truncates a UTF-8-encoded string safely to a number of characters.
Unicode::truncateBytes	public static	function	Truncates a UTF-8-encoded string safely to a number of bytes.
Unicode::ucfirst	public static	function	Capitalizes the first character of a UTF-8 string.
Unicode::ucwords	public static	function	Capitalizes the first character of each word in a UTF-8 string.
Unicode::validateUtf8	public static	function	Checks whether a string is valid UTF-8.