保存系统配置的时候报错.
at HandleExceptions->handleError('8', 'Array to string conversion', '/usr/local/www/tipask/app/Models/Setting.php', '45', array('env_path'
=> '/usr/local/www/tipask/.env', 'env_content' => 'APP_DEBUG=true
APP_ENV=local
APP_KEY=NoK6jDprgHpqAkWe1Lft9G6Ws8FS9zMV
CONTENT_LENGTH=345
CONTENT_TYPE=application/x-www-form-urlencoded
DB_DATABASE=tipaskx
DB_HOST=127.0.0.1
DB_PASSWORD=090201007
DB_PORT=3306
DB_PREFIX=ask_
DB_USERNAME=root
DOCUMENT_ROOT=/usr/local/nginx/public
DOCUMENT_URI=/index.php
FCGI_ROLE=RESPONDER
GATEWAY_INTERFACE=CGI/1.1
HOME=/home/linux
HTTP_ACCEPT=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_ACCEPT_ENCODING=gzip, deflate
HTTP_ACCEPT_LANGUAGE=zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
HTTP_CONNECTION=keep-alive
HTTP_CONTENT_LENGTH=345
HTTP_CONTENT_TYPE=application/x-www-form-urlencoded
HTTP_COOKIE=csrftoken=m4Jzmy7JQg2togIg8q96H4eSxOwVGAxEvMiaABf3HbSuVWBWLg8nM2RV7iia50ZR;
laravel_session=eyJpdiI6IkNZK2QxUFlHVjRPRHR2aGhYam56WUE9PSIsInZhbHVlIjoiYkM5XC9wY3Fvd0dwSU0xMmRiVkE2QTI5anlUemh5UURneUZBenhYMGRZMG9vRkxtcFRsM1wvUnZ4dDNnbG1UZ0RkNkNLXC9pQmgyNWpQc25GcnEwY05HTFE9PSIsIm1hYyI6IjQ5YTJiM2NhZmQyNDQyNTAxNjM1MmE2YzM3YWZkMjYzNDc2Y2IyNjBiMDU3YTYyN2RhZDE0NTg5MjBjODUxMjYifQ%3D%3D;
XSRF-TOKEN=eyJpdiI6InMzRkUweWpZRUdSTmEwOElEWGl3TUE9PSIsInZhbHVlIjoiRU4rOUUyMEVxMit3ODhCVW1qTzg4MmtlbDZiZk5LK2dpXC9WSE0raWU0bUNMak8rOXlFYVdVSGtQV0RyNWVXdE16MmhmejZcL2hSVWVuVkNqWEs0R2dVQT09IiwibWFjIjoiYjAyMzAxOTZhNTdmNDcxZDVlNWMzMDI2NDQ4NzE3ZmRkNjljNGU5ZTRkNjZhZjU5YzZlNmY1ODM1Y2QyYmQ4MSJ9;
sidebar_collapse=eyJpdiI6IkluTW5meEdZZEVXY0hZVkpiVXN1UXc9PSIsInZhbHVlIjoiVG1NKzdSb2wwNTRPUHpkdHlqZ3ZNQT09IiwibWFjIjoiZWEyNTBiNWI1OWU4M2IzMDNlYTY4NDNjNDU3ZmVmN2I2YWJlMWIzMTcyN2NiZGE5NTRlYWE3MTg0M2VkMjJhNCJ9;
remember_82e5d2c56bdd0811318f0cf078b78bfc=eyJpdiI6InA4R0dJWDF1Y3pSZG9wR1g0MXFuREE9PSIsInZhbHVlIjoiOVc0cVoxRVBmbXpLeXVHZHp6anQ1c1wvYzJoR2dKZ0xncWE2RDVKN3JYOExYOUROSWxEODZTQVljOEtxUFRWdTg0UGFZXC9OK2JiMUNDdUJqYWU0YmpkRDJiQzlRMHV3Wmw1cTVlM3l2c0k1cz0iLCJtYWMiOiI5MTY1ZWM0ZmQ3N2MxYTNkMTg0NTcxMGZlMzk2ODc1ZTI0YTY5ZjUyMzczOTRlYTEyZDFmZDVjZWUzMWVjZmM2In0%3D
HTTP_HOST=dreamqq.cn
HTTP_REFERER=http://dreamqq.cn/admin/setting/email
HTTP_UPGRADE_INSECURE_REQUESTS=1
HTTP_USER_AGENT=Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:57.0)
Gecko/20100101 Firefox/57.0
MAIL_DRIVER=smtp
MAIL_ENCRYPTION=ssl
MAIL_FROM_ADDRESS=jacqueline127@126.com
MAIL_FROM_NAME=外贸新头条
MAIL_HOST=smtp.126.com
MAIL_OPEN=1
MAIL_PASSWORD=yijialiang623
MAIL_PORT=465
MAIL_SENDMAIL=/usr/sbin/sendmail -bs
MAIL_USERNAME=jacqueline127@126.com
PHP_SELF=/index.php
QUERY_STRING=
REDIRECT_STATUS=200
REMOTE_ADDR=113.57.132.114
REMOTE_PORT=25519
REQUEST_METHOD=POST
REQUEST_SCHEME=http
REQUEST_TIME=1511770134
REQUEST_TIME_FLOAT=1511770134.5585
REQUEST_URI=/admin/setting/email
SCRIPT_FILENAME=/usr/local/www/tipask/public//index.php
SCRIPT_NAME=/index.php
SERVER_ADDR=192.168.0.4
SERVER_NAME=
SERVER_PORT=80
SERVER_PROTOCOL=HTTP/1.1
SERVER_SOFTWARE=nginx/1.11.13
USER=linux
argc=0
', 'value' => array(), 'key' => 'argv')) in Setting.php line 45