Yii v2 snippet guide III

Comparing #25 with #26

Revision #26 was created by rackycz rackycz on Feb 12, 2021, 9:14:12 AM.

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Content

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* [Yii v2 snippet guide II](https://www.yiiframework.com/wiki/2558/yii-v2-snippet-guide-ii)
* [Yii v2 snippet guide III](https://www.yiiframework.com/wiki/2567/yii-v2-snippet-guide-iii)


**Switching languages and Language in URL**
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I already [wrote](https://www.yiiframework.com/wiki/2552/yii-v2-snippet-guide#i18n-translations) how translations work. Here I will show how language can be switched and saved into the URL.
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Now the language-switching links will produce URL like this: http://myweb.com/en/site/index . Without the rules the link would look like this: http://myweb.com/site/index?sys_lang=en . So the rule works in both directions. When URL is parsed and controllers are called, but also when a new URL is created using the URL helper.

# **Search and replace Yii::t()**
 
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Simple usage in format Yii::t('text','text') can be searched using following regex for example in Notepad++. If you want to modify it massively, you can use the "replace" command, also in Notepad++.

```
search: Yii::t\('([^']*)'[^']*'([^']*)'[^\)]*\)
replace with: Yii::t\('$1','$2'\)
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