PHPmyadmin Issue - Fatal error: Uncaught Error: Call to undefined function mb_detect_encoding() -

i keep getting issue when try run phpmyadmin localhost.

fatal error: uncaught error: call undefined function mb_detect_encoding()  in c:\apache24\htdocs\phpmyadmin\libraries\php-gettext\gettext.inc:177 stack  trace: #0 c:\apache24\htdocs\phpmyadmin\libraries\php- gettext\gettext.inc(282): _en code('the %s extensio...') #1  c:\apache24\htdocs\phpmyadmin\libraries\php-gettext\gettext.inc(289): _ gettext('the %s extensio...') #2  c:\apache24\htdocs\phpmyadmin\libraries\core.lib.php(306): __('the %s  extensio...') #3 c:\apache24\htdocs\phpmyadmin\libraries\core.lib.php(961):  pma_warnmissingextension('mbstring', true) #4  c:\apache24\htdocs\phpmyadmin\libraries\common.inc.php(102):  pma_checkextensions() #5 c:\apache24\htdocs\phpmyadmin\index.php(13):  require_once('c:\\apache24\\htd...') #6 {main} thrown in  c:\apache24\htdocs\phpmyadmin\libraries\php-gettext\gettext.inc on line 177 

i have repeatedly gone through , tried of suggestions can find regarding issue , have yet figure out. have tried various "/" "\" suggestions no luck.

here httpd.conf settings:

serverroot "c:/apache24"    </ifmodule>  loadmodule php7_module "c:/php/php7apache2_4.dll"  addhandler application/x-httpd-php .php  phpinidir "c:\php" 

here php.ini settings:

 ; directory in loadable extensions (modules) reside.  ; http://php.net/extension-dir    extension_dir = "c:/php/ext"  ; on windows:    extension_dir = "c:/php/ext"        ;extension=php_bz2.dll  ;extension=php_curl.dll  ;extension=php_fileinfo.dll  ;extension=php_ftp.dll   extension=php_gd2.dll   extension=php_gettext.dll  ;extension=php_gmp.dll  ;extension=php_intl.dll  ;extension=php_imap.dll  ;extension=php_interbase.dll  ;extension=php_ldap.dll   extension=php_mbstring.dll   extension=php_exif.dll      ; must after mbstring depends on   extension=php_mysqli.dll  ;extension=php_oci8_12c.dll  ; use oracle database 12c instant client  ;extension=php_openssl.dll  ;extension=php_pdo_firebird.dll  ;extension=php_pdo_mysql.dll  ;extension=php_pdo_oci.dll  ;extension=php_pdo_odbc.dll  ;extension=php_pdo_pgsql.dll  ;extension=php_pdo_sqlite.dll  ;extension=php_pgsql.dll  ;extension=php_shmop.dll 

phpinfo

 php version 7.0.13  system windows nt server 6.3 build 9600 (windows server 2012 r2      standard edition) amd64  build date nov 8 2016 13:28:54  compiler   msvc14 (visual c++ 2015)  architecture   x64  configure command  cscript /nologo configure.js "--enable-snapshot-build"        "--enable-debug-pack" "--with-pdo-oci=c:\php-    sdk\oracle\x64\instantclient_12_1\sdk,shared" "--with-oci8-12c=c:\php-  sdk\oracle\x64\instantclient_12_1\sdk,shared" "--enable-object-out-  dir=../obj/" "--enable-com-dotnet=shared" "--with-mcrypt=static" "--   without-analyzer" "--with-pgo"  server api apache 2.0 handler  virtual directory support  enabled  configuration file (php.ini) path  c:\windows  loaded configuration file  (none)  scan dir additional .ini files    (none)  additional .ini files parsed   (none)  php api    20151012  php extension  20151012  zend extension 320151012  zend extension build   api320151012,ts,vc14  php extension build    api20151012,ts,vc14  debug build    no  thread safety  enabled  zend signal handling   disabled  zend memory manager    enabled  zend multibyte support disabled  ipv6 support   enabled  dtrace support disabled  registered php streams php, file, glob, data, http, ftp, zip,        compress.zlib, phar  registered stream socket transports    tcp, udp  registered stream filters  convert.iconv.*, mcrypt.*, mdecrypt.*,     string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*,    consumed, dechunk, zlib.* 

software/hardware

 - windows server 2016r2  - php 7.0.13  - phpmyadmin (c:\apache24\htdocs\phpmyadmin)  - apache 2.4  - mysql 5.7.1 

i appreciate can give me. not sure steps take.

i having same issue on windows 10 bitnami wamp stack version 7.0.12-0 (not sure if using bitnami or other wamp stack, or none). gave troubleshooting (have tried running commands:

cd \php deplister ext\php_mbstring.dll 

in command prompt, check dependencies php_mbstring.dll, , see if "notfound" errors?), , installed latest version of bitnami, 7.0.13-1, , phpmyadmin worked immediately. (i had changed httpd.conf , php.ini in previous version of bitnami, may have broken phpmyadmin changes).