1 <?php

     2 /*

     3  This file should only ever be loaded on PHP 7+

     4  */

     5 if (PHP_VERSION_ID < 70000) {

     6     return;

     7 }

     8 

     9 spl_autoload_register(function ($class) {

    10     $namespace = 'ParagonIE_Sodium_';

    11     // Does the class use the namespace prefix?

    12     $len = strlen($namespace);

    13     if (strncmp($namespace, $class, $len) !== 0) {

    14         // no, move to the next registered autoloader

    15         return false;

    16     }

    17 

    18     // Get the relative class name

    19     $relative_class = substr($class, $len);

    20 

    21     // Replace the namespace prefix with the base directory, replace namespace

    22     // separators with directory separators in the relative class name, append

    23     // with .php

    24     $file = dirname(__FILE__) . '/src/' . str_replace('_', '/', $relative_class) . '.php';

    25     // if the file exists, require it

    26     if (file_exists($file)) {

    27         require_once $file;

    28         return true;

    29     }

    30     return false;

    31 });