Uncaught Error: Call to undefined function Smarty\Extension\smarty_mb_str_replace()

I have got an error when i ported Smarty via Composer autoload.

"autoload": {
        "psr-4": {

            "Smmarty\\": "src/libs/smarty/smarty/src/",
             .....
        }
    },

so, i guess this way can't use functions.php.

Correct me if i am wrong or tell me how to fix it.

Fatal error: Uncaught Error: Call to undefined function Smarty\Extension\smarty_mb_str_replace() in /var/www/[mysite]/src/libs/smarty/smarty/src/Extension/DefaultExtension.php:713 Stack trace: #0 [internal function]: Smarty\Extension\DefaultExtension->smarty_modifier_replace() #1 /var/www/[mysite]/src/libs/smarty/smarty/src/Extension/CallbackWrapper.php(29): call_user_func_array() #2 /var/www/[mysite]/compiled/agmin/edf7a75dc2328fd6ec4caf8f42dbb798603b2774_0.file_users.tpl.php(170): Smarty\Extension\CallbackWrapper->handle() #3 /var/www/[mysite]/src/libs/smarty/smarty/src/Template/GeneratedPhpFile.php(111): content_67196cc502a829_67969777() #4 /var/www/[mysite]/src/libs/smarty/smarty/src/Template/Compiled.php(110): Smarty\Template\GeneratedPhpFile->getRenderedTemplateCode() #5 /var/www/[mysite]/src/libs/smarty/smarty/src/Template.php(180): Smarty\Template\Compiled->render() #6 /var/www/[mysite]/src/libs/smarty/smarty/src/Template.php(655): Smarty\Template->render() #7 /var/www/[mysite]/src/libs/smarty/smarty/src/Template.php(589): Smarty\Template->_execute() #8 /var/www/[mysite]/src/libs/smarty/smarty/src/Smarty.php(2121): Smarty\Template->fetch() #9 /var/www/[mysite]/src/api/Design.php(121): Smarty\Smarty->fetch() #10 /var/www/[mysite]/app/agmin/view/users/UsersAdmin.php(114): Design->fetch() #11 /var/www/[mysite]/app/agmin/view/IndexAdmin.php(181): UsersAdmin->fetch() #12 /var/www/[mysite]/app/agmin/index.php(38): IndexAdmin->fetch() #13 {main} thrown in /var/www/[mysite]/src/libs/smarty/smarty/src/Extension/DefaultExtension.php on line 713

It seems you misspelled Smarty in line 4. Does that fix your problem?

In this case the Smarty core works well. I have an error only when i want to use methods in function.php file. For example smarty_mb_str_replace

Right now i connected smarty via requare_once

Right now i connect Smarty via composer "require". So can't check this issue

It seems you misspelled Smarty in line 4. Does that fix your problem?

Its only namespace. This shouldn't have any effect

Ah, I see. You need to require src/functions.php as well. Like this:

    "autoload": {
        "psr-4" : {
            "Smarty\\" : "src/"
        },
        "files": [
            "src/functions.php"
        ]
    },

See

smarty/composer.json

Line 36 in a1b4c9c

"autoload": {