<?php 
/* 
 This file should only ever be loaded on PHP 7+ 
 */ 
if (PHP_VERSION_ID < 70000) { 
    return; 
} 
 
spl_autoload_register(function ($class) { 
    $namespace = 'ParagonIE_Sodium_'; 
    // Does the class use the namespace prefix? 
    $len = strlen($namespace); 
    if (strncmp($namespace, $class, $len) !== 0) { 
        // no, move to the next registered autoloader 
        return false; 
    } 
 
    // Get the relative class name 
    $relative_class = substr($class, $len); 
 
    // Replace the namespace prefix with the base directory, replace namespace 
    // separators with directory separators in the relative class name, append 
    // with .php 
    $file = dirname(__FILE__) . '/src/' . str_replace('_', '/', $relative_class) . '.php'; 
    // if the file exists, require it 
    if (file_exists($file)) { 
        require_once $file; 
        return true; 
    } 
    return false; 
}); 
 
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