( ! ) Fatal error: Uncaught Error: Call to undefined function CodeIgniter\Config\putenv() in /home/dichvuweb/vendor/codeigniter4/framework/system/Config/DotEnv.php on line 98
( ! ) Error: Call to undefined function CodeIgniter\Config\putenv() in /home/dichvuweb/vendor/codeigniter4/framework/system/Config/DotEnv.php on line 98
Call Stack
#	Time	Memory	Function	Location
1	0.0001	425840	{main}( )	.../index.php:0
2	0.0005	426072	CodeIgniter\Boot::bootWeb( $paths = class Config\Paths { public string $systemDirectory = '/home/dichvuweb/app/Config/../../vendor/codeigniter4/framework/system'; public string $appDirectory = '/home/dichvuweb/app/Config/..'; public string $writableDirectory = '/home/dichvuweb/app/Config/../../writable'; public string $testsDirectory = '/home/dichvuweb/app/Config/../../tests'; public string $viewDirectory = '/home/dichvuweb/app/Config/../Views'; public string $envDirectory = '/home/dichvuweb/app/Config/../../' } )	.../index.php:59
3	0.0008	427472	CodeIgniter\Boot::loadDotEnv( $paths = class Config\Paths { public string $systemDirectory = '/home/dichvuweb/app/Config/../../vendor/codeigniter4/framework/system'; public string $appDirectory = '/home/dichvuweb/app/Config/..'; public string $writableDirectory = '/home/dichvuweb/app/Config/../../writable'; public string $testsDirectory = '/home/dichvuweb/app/Config/../../tests'; public string $viewDirectory = '/home/dichvuweb/app/Config/../Views'; public string $envDirectory = '/home/dichvuweb/app/Config/../../' } )	.../Boot.php:50
4	0.0009	427912	CodeIgniter\Config\DotEnv->load( )	.../Boot.php:209
5	0.0009	427912	CodeIgniter\Config\DotEnv->parse( )	.../DotEnv.php:47
6	0.0012	428920	CodeIgniter\Config\DotEnv->setVariable( $name = 'CI_ENVIRONMENT', $value = 'development' )	.../DotEnv.php:81