PHP utf8\sub Examples

Example #1

File: strspn.php Project: corpsee/php-utf-8

/**
 * UTF-8 aware alternative to strspn.
 *
 * Find length of initial segment matching mask.
 *
 * @package    php-utf-8
 * @subpackage functions
 * @see        http://www.php.net/strspn
 * @uses       utf8_strlen
 * @uses       utf8_substr
 *
 * @param string  $str
 * @param string  $mask
 * @param integer $start
 * @param integer $length
 *
 * @return int
 */
function span($str, $mask, $start = null, $length = null)
{
    $mask = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\\${1}', $mask);
    if ($start !== null || $length !== null) {
        $str = \utf8\sub($str, $start, $length);
    }
    preg_match('/^[' . $mask . ']+/u', $str, $matches);
    if (isset($matches[0])) {
        return \utf8\len($matches[0]);
    }
    return 0;
}

Example #2

File: Utf8SubstrTest.php Project: corpsee/php-utf-8

 public function test_long_length()
 {
     $str = 'Iñtërnâtiônàlizætiøn';
     $this->assertEquals('Iñtërnâtiônàlizætiøn', utf8\sub($str, 0, 15536));
 }