UTF8 string length counter

The best way to determine the character count of a UTF8 string.

function strlen_utf8( $str )
{
   return mb_strlen( $str, 'UTF-8' );
}
 
//or...
function strlen_utf8( $str )
{
   $c = 0;
   $len = strlen( $str );
   for ( $i = 0; $i < $len; $i++ ) {
      //0x80 = 128
      $ord = ord( $str[$i] );
      if ( $ord & 0x80 ) {
         $ord <<= 1;
         while ( $ord & 0x80 ) {
            $i++;
            $ord <<= 1;
         }
 
         $c++;
      }
      else {
         $c++;
      }
   }
 
   return $c;
}

Tags

No tag here.
Short link to this page: vtwo.org/1689816
یا کپی به این صفحه

Recommended pages

Validate phone number...

Chek if a phone numbers is valid, according to its syntax (should be: "+390523599314"). True if it's valid, False otherwise function is_valid_phone( $phone ) { if ( $phone[0] != "+" ) { ...

Best way to get user ip address in php...

Here is a function to getting ip using filter of local and lan ip's. function get_ip() { $list = array( 'REMOTE_ADDR', 'CLIENT_IP', 'HTTP_CLIENT_IP', 'HTTP_PROXY_CONNECTION',...

SQL escape string function...

Escapes special characters in a string for use in an SQL statement. howewer it check get_magic_quotes_gpc function is enable or no. if true , it strips string from slashes and escaped string from spec...

Delete or Remove all files and folders in a directory‎...

If you want to delete everything from folder (including subfolders) use this function. function removeDir( $dir ) { if ( is_dir( $dir ) ) { $objects = scandir( $dir ); foreach ( $o...