function drupal_strlen in Drupal 7

Same name and namespace in other branches

1. 4 includes/unicode.inc \drupal_strlen()
2. 5 includes/unicode.inc \drupal_strlen()
3. 6 includes/unicode.inc \drupal_strlen()

Counts the number of characters in a UTF-8 string.

This is less than or equal to the byte count.

Parameters

$text: The string to run the operation on.

Return value

integer The length of the string.

Related topics

21 calls to drupal_strlen()

DrupalHtmlToTextTestCase::testVeryLongLineWrap in modules/simpletest/tests/mail.test

Tests that drupal_html_to_text() wraps before 1000 characters.

drupal_html_to_text in includes/mail.inc

Transforms an HTML string into plain text, preserving its structure.

field_create_field in modules/field/field.crud.inc

Creates a field.

hook_field_validate in modules/field/field.api.php

Validate this module's field data.

list_allowed_values_setting_validate in modules/field/modules/list/list.module

Element validate callback; check that the entered values are valid.

... See full list

File

includes/unicode.inc, line 479

Provides Unicode-related conversions and operations.

Code

function drupal_strlen($text) {
  global $multibyte;
  if ($multibyte == UNICODE_MULTIBYTE) {
    return mb_strlen($text);
  }
  else {

    // Do not count UTF-8 continuation bytes.
    return strlen(preg_replace("", '', $text));
  }
}