错误消息："MemCache需要加载PHP memcache扩展。“迁移后。

Question

来自phpinfo()：phpinfo, memcache is loaded

但是，当我尝试迁移时，显示以下错误：

Exception 'yii\base\InvalidConfigException' with message 'MemCache requires PHP memcache extension to be loaded.'

in /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/caching/MemCache.php:217

Stack trace:
#0 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/caching/MemCache.php(113): yii\caching\MemCache->getMemcache()
#1 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/base/Object.php(107): yii\caching\MemCache->init()
#2 [internal function]: yii\base\Object->__construct(Array)
#3 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/di/Container.php(372): ReflectionClass->newInstanceArgs(Array)
#4 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/di/Container.php(151): yii\di\Container->build('yii\\caching\\Mem...', Array, Array)
#5 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/BaseYii.php(344): yii\di\Container->get('yii\\caching\\Mem...', Array, Array)
#6 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/di/ServiceLocator.php(133): yii\BaseYii::createObject(Array)
#7 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/db/Schema.php(275): yii\di\ServiceLocator->get('cache', false)
#8 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/db/Migration.php(71): yii\db\Schema->refresh()
#9 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/base/Object.php(107): yii\db\Migration->init()
#10 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/console/controllers/MigrateController.php(113): yii\base\Object->__construct(Array)
#11 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/console/controllers/BaseMigrateController.php(491): yii\console\controllers\MigrateController->createMigration('m170316_221710_...')
#12 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/console/controllers/BaseMigrateController.php(129): yii\console\controllers\BaseMigrateController->migrateUp('m170316_221710_...')
#13 [internal function]: yii\console\controllers\BaseMigrateController->actionUp(0)
#14 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/base/InlineAction.php(55): call_user_func_array(Array, Array)
#15 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/base/Controller.php(151): yii\base\InlineAction->runWithParams(Array)
#16 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/console/Controller.php(91): yii\base\Controller->runAction('', Array)
#17 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/base/Module.php(455): yii\console\Controller->runAction('', Array)
#18 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/console/Application.php(167): yii\base\Module->runAction('migrate', Array)
#19 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/console/Application.php(143): yii\console\Application->runAction('migrate', Array)
#20 /Library/WebServer/Documents/r2d2/vendor/yiisoft/yii2/base/Application.php(375): yii\console\Application->handleRequest(Object(yii\console\Request))
#21 /Library/WebServer/Documents/r2d2/yii(27): yii\base\Application->run()
#22 {main}

有人能帮我找出原因吗？

谢谢!

Answer 1

错误来自控制台应用程序，而phpinfo输出来自The服务器。因此，您基本上为for服务器启用了memcache模块，但没有为控制台启用。为了给出准确的解决方案，需要更多关于你的设置的信息:你​使用什么，php-fpm，modapache？请提供来自web和cli的完整phpinfo输出

更新

检查控制台PHP扫描的目录中是否有其他ini文件：

php -i | grep "Scan this dir for additional .ini files"

然后，您需要将带有模块配置的配置文件(例如memcache.ini)放入其中一个。内容应如下所示：

extension=memcache.so

你可以查看一下webserver参考的那一个。

Answer 2

如果您使用memcached而不是memcache，则需要将以下行添加到config/console.php：

'useMemcached' => true,

它应该看起来像这样：

'components' => [
    'cache' => [
        'class' => 'yii\caching\MemCache',
        'useMemcached' => true,
        'servers' => [
            [

……