Magento 2 documentation<\/a> to use objectmanager is not recommend. You can still use it in a temporary code or while you’re debugging something, but if you want to do it right, you should use dependency injection method.<\/p>\n<\/div><\/div>\n\n\n\nA way to get a configuration value without objectmanager<\/h2>\n\n\n\n
To avoid an objectmanager, in Magento 2 we’re using dependency injection. Using this pattern, ScopeConfigInterface object is included via class constructor. Here is the simple example, how to get config value using dependency injection method<\/p>\n\n\n\n
public $scopeConfig;<\/span>\n\npublic function __construct(\n . . .\n \\Magento\\Framework\\App\\Config\\ScopeConfigInterface $scopeConfig<\/span>\n . . .\n) {\n . . .\n $this->scopeConfig = $scopeConfig;<\/span>\n . . .\n}<\/code><\/pre>\n\n\n\nand then to get a config value<\/p>\n\n\n\n
public function mySomethingSomething()\n{\n . . .\n $valueFromConfig = $this->scopeConfig->getValue(\n 'section\/group\/field',\n \\Magento\\Store\\Model\\ScopeInterface::SCOPE_STORE,\n );<\/span>\n . . .\n}<\/code><\/pre>\n\n\n\nGetting a config value by store id<\/h2>\n\n\n\n
As you probably noticed, Magento is multi store platform and in some cases you might want to get a value from configuration according to store. The method, which we used in the examples above getValue<\/strong>, by default returns global configuration values. To change that, we need to pass our store id<\/p>\n\n\n\npublic function mySomethingSomething()\n{\n . . .\n $valueFromConfig = $this->scopeConfig->getValue(\n 'sections\/group\/field',\n \\Magento\\Store\\Model\\ScopeInterface::SCOPE_STORE,,\n $storeId<\/span>,\n );\n . . .\n}<\/code><\/pre>\n\n\n\nTroubleshooting<\/h2>\n\n\n\nNo changes in frontend<\/h3>\n\n\n\n
If you have added the objectmanager code snippet in .phtml template file and can’t see any difference in fronted, probably it because of cache. Try to clear it.<\/p>\n\n\n\n
Conclusion<\/h2>\n\n\n\n
In case, it isn’t a temporary code – use dependency injection. It’s not a rocket science!<\/p>\n\n\n\n
That’s all for this post, folks. Let me know in the comments below, if you have some questions, or had some problems using the code snippets. I will be more than happy to append this post with your case.<\/p>\n\n\n\n
Happy coding!<\/p>\n\n\n
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