How can PHP developers streamline the translation process for HTML templates by providing translators with a user-friendly interface that preserves both text and HTML code structure?

PHP developers can streamline the translation process for HTML templates by creating a user-friendly interface that allows translators to input translations while preserving the HTML code structure. One way to achieve this is by using placeholders for text that needs to be translated within the HTML templates. These placeholders can then be replaced with the translated text during runtime. Additionally, developers can create a translation management system that stores and manages all translations in a centralized location.

<?php
// Define an array of translations with placeholders
$translations = [
    'hello' => 'Hello, :name!',
    'welcome' => 'Welcome to our website, :name!',
];

// Function to translate text with placeholders
function translate($key, $placeholders = []) {
    global $translations;
    
    if (isset($translations[$key])) {
        $translation = $translations[$key];
        
        foreach ($placeholders as $placeholder => $value) {
            $translation = str_replace(":$placeholder", $value, $translation);
        }
        
        return $translation;
    }
    
    return $key;
}

// Example usage
echo translate('hello', ['name' => 'John']); // Output: Hello, John!
echo translate('welcome', ['name' => 'Jane']); // Output: Welcome to our website, Jane!
?>