Call to undefined function Illuminate\Support\mb_split() #665
Description
What were you trying to do?
The app was working fine until this error started appearing. Call to undefined function Illuminate\Support\mb_split()
I was trying to run php artisan native:serve normally. The app didn't start and the console logs was stuck on
Running the dev script with npm...
Fetching latest dependencies…`
I then tried to run php artisan native:serve -vvv
The following logs appeared:
checkForUpdatesAndNotify called, downloadPromise is null
Electron API server started on port 4000
Starting PHP server... E:\Work\test-laravel\vendor\nativephp\electron\resources\js\resources\php\php.exe artisan serve E:\Work\test-laravel []
Copying storage folder...
Storage path: C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage
App path: E:\Work\test-laravel
Making sure app folders are available
Linking storage path...
Calling PHP E:\Work\test-laravel\vendor\nativephp\electron\resources\js\resources\php\php.exe [
'-d',
'openssl.cafile=E:\\Work\\test-laravel\\vendor\\nativephp\\electron\\resources\\js\\resources\\cacert.pem',
'-d',
'curl.cainfo=E:\\Work\\test-laravel\\vendor\\nativephp\\electron\\resources\\js\\resources\\cacert.pem',
'-d',
'memory_limit=512M',
'artisan',
'storage:link',
'--force'
]
Skipping Database migration while in development.
You may migrate manually by running: php artisan native:migrate
Starting PHP server...
* * * Running from source * * *
Calling PHP E:\Work\test-laravel\vendor\nativephp\electron\resources\js\resources\php\php.exe [
'-d',
'openssl.cafile=E:\\Work\\test-laravel\\vendor\\nativephp\\electron\\resources\\js\\resources\\cacert.pem',
'-d',
'curl.cainfo=E:\\Work\\test-laravel\\vendor\\nativephp\\electron\\resources\\js\\resources\\cacert.pem',
'-d',
'memory_limit=512M',
'-S',
'127.0.0.1:8100',
'E:\\Work\\test-laravel\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\resources\\server.php'
]
PHP Server started on port: 8100
[Sat Jul 26 18:10:13 2025] 127.0.0.1:51420 [POST] URI: /_native/api/booted
Process [queue_default] spawned!
Please check your log files:
C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage\logs
[Sat Jul 26 18:10:14 2025] 127.0.0.1:51422 [POST] URI: /_native/api/events
Please check your log files:
C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage\logs
Error in PHP:
Call to undefined function Illuminate\Support\mb_split() (0) in E:\Work\test-laravel\vendor\laravel\framework\src\Illuminate\Support\Str.php:1700
Error in PHP:
Call to undefined function Illuminate\Support\mb_split() (0) in E:\Work\test-laravel\vendor\laravel\framework\src\Illuminate\Support\Str.php:1700
[Sat Jul 26 18:10:14 2025] 127.0.0.1:51426 [POST] URI: /_native/api/events
Please check your log files:
C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage\logs
Error in PHP:
Call to undefined function Illuminate\Support\mb_split() (0) in E:\Work\test-laravel\vendor\laravel\framework\src\Illuminate\Support\Str.php:1700
[Sat Jul 26 18:10:15 2025] 127.0.0.1:51430 [POST] URI: /_native/api/events
Please check your log files:
C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage\logs
Error in PHP:
Call to undefined function Illuminate\Support\mb_split() (0) in E:\Work\test-laravel\vendor\laravel\framework\src\Illuminate\Support\Str.php:1700
[Sat Jul 26 18:10:15 2025] 127.0.0.1:51434 [POST] URI: /_native/api/events
Please check your log files:
C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage\logs
Error in PHP:
Call to undefined function Illuminate\Support\mb_split() (0) in E:\Work\test-laravel\vendor\laravel\framework\src\Illuminate\Support\Str.php:1700
[Sat Jul 26 18:10:16 2025] 127.0.0.1:51438 [POST] URI: /_native/api/events
Please check your log files:
C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage\logs
Error in PHP:
Call to undefined function Illuminate\Support\mb_split() (0) in E:\Work\test-laravel\vendor\laravel\framework\src\Illuminate\Support\Str.php:1700
[Sat Jul 26 18:10:16 2025] 127.0.0.1:51442 [POST] URI: /_native/api/events
Please check your log files:
C:\Users\xTrimy\AppData\Roaming\laravel-dev\storage\logs
Error in PHP:
Call to undefined function Illuminate\Support\mb_split() (0) in E:\Work\test-laravel\vendor\laravel\framework\src\Illuminate\Support\Str.php:1700
What happened?
The app doesn't work with the nativephp's php binaries. I tried to run the laravel server (browser) it works perfectly.
I even tried to create a new fresh project. Same error.
How to reproduce the bug
Fresh install of nativephp project and run php artisan native:serve
Debug Output
Array
(
[Environment] => Array
(
[PHP] => Array
(
[Version] => 8.3.22
[Path] => C:\Users\xTrimy.pvm\versions\php-8.3.22-Win32-vs16-x64\php.exe
)
[Laravel] => Array
(
[Version] => 12.21.0
[ConfigCached] =>
[RoutesCached] =>
[DebugEnabled] => 1
)
[Node] => Array
(
[Version] => v22.17.0
[Path] => C:\Program Files\nodejs\node.exe
)
[NPM] => Array
(
[Version] => 10.9.2
[Path] => C:\Program Files\nodejs\npm
C:\Program Files\nodejs\npm.cmd
)
[OperatingSystem] => WINNT
)
[NativePHP] => Array
(
[Versions] => Illuminate\Support\Collection Object
(
[items:protected] => Array
(
[nativephp/electron] => 1.1.1.0
[nativephp/laravel] => 1.1.2.0
[nativephp/php-bin] => 1.0.3.0
)
[escapeWhenCastingToString:protected] =>
)
[Configuration] => Array
(
[Provider] => App\Providers\NativeAppServiceProvider
[BuildHooks] => Array
(
[Pre] => Array
(
)
[Post] => Array
(
)
)
[NotarizationEnabled] =>
[CustomPHPBinary] =>
)
)
)
Which operating systems have you seen this occur on?
Windows
Notes
No response