function backdrop_strlen

1 unicode.inc backdrop_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

integer: The length of the string.

Related topics

PHP wrapper functions Functions that are wrappers or custom implementations of PHP functions.

42 calls to backdrop_strlen()

BackdropHtmlToTextTestCase::testVeryLongLineWrap in core/modules/simpletest/tests/mail.test: Tests that backdrop_html_to_text() wraps before 1000 characters.
backdrop_html_to_text in core/includes/mail.inc: Transforms an HTML string into plain text, preserving its structure.
Color::validateHex in core/includes/color.inc: Validates whether a hexadecimal color value is syntactically correct.
drupal_strlen in core/includes/drupal.inc: Counts the number of characters in a UTF-8 string.
field_validate_field in core/modules/field/field.crud.inc: Validates a field configuration.

... See full list

File

core/includes/unicode.inc, line 480: Provides Unicode-related conversions and operations.

Code

function backdrop_strlen($text) {
  // Bail early if $text is NULL.
  // @todo Remove this in 2.x.
  if (is_null($text)) {
    return 0;
  }

  global $multibyte;
  if ($multibyte == UNICODE_MULTIBYTE) {
    return mb_strlen($text);
  }
  else {
    // Do not count UTF-8 continuation bytes.
    return strlen(preg_replace("/[\x80-\xBF]/", '', $text));
  }
}