public static Unicode::truncateBytes($string, $len) Truncates a UTF-8-encoded string safely to a number of bytes. If the end position is in the middle of a UTF-8 sequence, it scans backwards until the beginning of the byte sequence. Use this function whenever you want to chop off a string at an unsure location. On the other hand, if you're sure that you're splitting on a character boundary (e.g. after using strpos() or similar), you can safely use substr() instead. Parameters string $string: T

public static Unicode::ucwords($text) Capitalizes the first character of each word in a UTF-8 string. Parameters string $text: The text that will be converted. Return value string The input $text with each word capitalized. Related topics PHP wrapper functions Functions that are wrappers or custom implementations of PHP functions. File core/lib/Drupal/Component/Utility/Unicode.php, line 377 Class Unicode Provides Unicode-related conversions and operations. Namespace Drupal\Component

unicode_requirements() Returns Unicode library status and errors. File core/includes/unicode.inc, line 13 Provides Unicode-related conversions and operations. Code function unicode_requirements() { $libraries = array( Unicode::STATUS_SINGLEBYTE => t('Standard PHP'), Unicode::STATUS_MULTIBYTE => t('PHP Mbstring Extension'), Unicode::STATUS_ERROR => t('Error'), ); $severities = array( Unicode::STATUS_SINGLEBYTE => REQUIREMENT_WARNING, Unicode::STATUS_MULTIB

public static Unicode::ucfirst($text) Capitalizes the first character of a UTF-8 string. Parameters string $text: The string to convert. Return value string The string with the first character as uppercase. File core/lib/Drupal/Component/Utility/Unicode.php, line 346 Class Unicode Provides Unicode-related conversions and operations. Namespace Drupal\Component\Utility Code public static function ucfirst($text) { return static::strtoupper(static::substr($text, 0, 1)) . static::substr

public static Unicode::validateUtf8($text) Checks whether a string is valid UTF-8. All functions designed to filter input should use drupal_validate_utf8 to ensure they operate on valid UTF-8 strings to prevent bypass of the filter. When text containing an invalid UTF-8 lead byte (0xC0 - 0xFF) is presented as UTF-8 to Internet Explorer 6, the program may misinterpret subsequent bytes. When these subsequent bytes are HTML control characters such as quotes or angle brackets, parts of the text tha

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);

public static Unicode::strlen($text) Counts the number of characters in a UTF-8 string. This is less than or equal to the byte count. Parameters string $text: The string to run the operation on. Return value int The length of the string. File core/lib/Drupal/Component/Utility/Unicode.php, line 283 Class Unicode Provides Unicode-related conversions and operations. Namespace Drupal\Component\Utility Code public static function strlen($text) { if (static::getStatus() == static::STATUS

public static Unicode::strtoupper($text) Converts a UTF-8 string to uppercase. Parameters string $text: The string to run the operation on. Return value string The string in uppercase. File core/lib/Drupal/Component/Utility/Unicode.php, line 302 Class Unicode Provides Unicode-related conversions and operations. Namespace Drupal\Component\Utility Code public static function strtoupper($text) { if (static::getStatus() == static::STATUS_MULTIBYTE) { return mb_strtoupper($text);

public static Unicode::substr($text, $start, $length = NULL) Cuts off a piece of a string based on character indices and counts. Follows the same behavior as PHP's own substr() function. Note that for cutting off a string at a known character/substring location, the usage of PHP's normal strpos/substr is safe and much faster. Parameters string $text: The input string. int $start: The position at which to start reading. int $length: The number of characters to read. Return value string The sho

public static Unicode::truncate($string, $max_length, $wordsafe = FALSE, $add_ellipsis = FALSE, $min_wordsafe_length = 1) Truncates a UTF-8-encoded string safely to a number of characters. Parameters string $string: The string to truncate. int $max_length: An upper limit on the returned string length, including trailing ellipsis if $add_ellipsis is TRUE. bool $wordsafe: If TRUE, attempt to truncate on a word boundary. Word boundaries are spaces, punctuation, and Unicode characters used as word