flexostudio

It allow the user to translate static texts as the example: 
echo _l(‘cat’);
see http://www.flexostudio.com/
<h3>How to use</h3>
need to make php file that is located inside the theme, it must be said lang_ (languages ??which will translate as lang_en.php) 
 and contains the following code:
<?php $FL_DICT = array(
<pre><code> 'cat' => 'Katze',
 'dog' => 'Hund',
.............
</code></pre>
);?> 
where ‘cat’ => ‘Katze’ ‘regulations is a word and its translation.
in function.php to add the code: 
<?php if(class_exists(‘flexoLanguage’)){
<pre><code>$f = dirname(__FILE__);

if(!flexoLanguage::is_set_language())
 flexoLanguage::set_language('en');//selected language

flexoLanguage::add_dictionary($f);

function _l($key){
 return flexoLanguage::_($key);
}
</code></pre>
} 
else{ 
 function _l($key){return $key;} 
}?>
and everywhere in the code where you write words you want to have a translation in another language and place: 
_l(‘cat’);

flexo-language

Add another language functionality, that is file based without compressions see: http://www.flexostudio.com/

Chouby

WordPress, your theme and your plugins are all written in US English. The possibility to use them in your own language is one of the greatest features offered by the community of translators. Unfortunately, this comes at a high price. The translation process slows down your site. A lot. At least by 20% for a fresh install and generally much more for a site using a few plugins.
DynaMo uses a different way to handle the translations which increases the performance compared to the method used by WordPress. How much it will improve your site performance will depend on your install. But the more (translated) plugins, the more difference you will observe. In our own tests with a few popular plugins (WooCommerce, Jetpack, Yoast SEO and Elementor) we measured a page generation time decreased by 25%!
If you have object cache activated, DynaMo will automatically switch to another method to take profit of it for even more benefit.
Install and activate the plugin as usual from the ‘Plugins’ menu in WordPress. That’s all. There are no settings.

DynaMo

Improves the performance of WordPress translation

flexo-language vs DynaMo