phplaravel怎么优化（laravel执行php artisan migrate报错的解决方法）

phplaravel怎么优化

报错一

$ php artisan migrate
 
 Illuminate\Database\QueryException : could not find driver (SQL: select * fr
om information_schema.tables where table_schema = dev_oms and table_name = migra
tions)
 
 at D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connection.
php:664
 660|   // If an exception occurs when attempting to run a query, we'll
 format the error
 661|   // message to include the bindings with SQL, which will make th
is exception a
 662|   // lot more helpful to the developer instead of just the databa
se's errors.
 663|   catch (Exception $e) {
 > 664|    throw new QueryException(
 665|     $query, $this->prepareBindings($bindings), $e
 666|    );
 667|   }
 668|
 
 Exception trace:
 
 1 PDOException::("could not find driver")
  D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connectors
\Connector.php:68
 
 2 PDO::__construct("mysql:host=127.0.0.1;port=3306;dbname=dev_oms", "root",
"root", [])
  D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connectors
\Connector.php:68
 
 Please use the argument -v to see more details.

	原因是php.ini 扩展"php_pdo_mysql.dll"没开启

	

	报错二
$ php artisan migrate
Migration table created successfully.
 
 Illuminate\Database\QueryException : SQLSTATE[42000]: Syntax error or access
 violation: 1071 Specified key was too long; max key length is 767 bytes (SQL: a
lter table `users` add unique `users_email_unique`(`email`))
 
 at D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connection.
php:664
 660|   // If an exception occurs when attempting to run a query, we'll
 format the error
 661|   // message to include the bindings with SQL, which will make th
is exception a
 662|   // lot more helpful to the developer instead of just the databa
se's errors.
 663|   catch (Exception $e) {
 > 664|    throw new QueryException(
 665|     $query, $this->prepareBindings($bindings), $e
 666|    );
 667|   }
 668|
 Exception trace:
 1 PDOException::("SQLSTATE[42000]: Syntax error or access violation: 1071 Sp
ecified key was too long; max key length is 767 bytes")
  D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connection
.php:458
 2 PDOStatement::execute()
  D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connection
.php:458
 Please use the argument -v to see more details.

	数据库编码改为utf8mb4

	

	报错三
$ php artisan migrate
Migration table created successfully.
 
 Illuminate\Database\QueryException : SQLSTATE[42000]: Syntax error or access
 violation: 1071 Specified key was too long; max key length is 767 bytes (SQL: a
lter table `users` add unique `users_email_unique`(`email`))
 
 at D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connection.
php:664
 660|   // If an exception occurs when attempting to run a query, we'll
 format the error
 661|   // message to include the bindings with SQL, which will make th
is exception a
 662|   // lot more helpful to the developer instead of just the databa
se's errors.
 663|   catch (Exception $e) {
 > 664|    throw new QueryException(
 665|     $query, $this->prepareBindings($bindings), $e
 666|    );
 667|   }
 668|
 Exception trace:
 1 PDOException::("SQLSTATE[42000]: Syntax error or access violation: 1071 Sp
ecified key was too long; max key length is 767 bytes")
  D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connection
.php:458
 2 PDOStatement::execute()
  D:\WWW\dev_oms\vendor\laravel\framework\src\Illuminate\Database\Connection
.php:458
 Please use the argument -v to see more details.

	加上两行代码即可

	

	以上这篇laravel执行php artisan migrate报错的解决方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持免费资源网。

	原文链接：https://blog.csdn.net/Code_Pupil/article/details/80371145

 

  
标签：migrate PHP Laravel Artisan   
 
 



              
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