PHP Blenc错误无法读取流，使用默认编译器编译。在第0行的未知位置

我无法使用blenc创建简单的测试。有人能提供我为什么收到下面的错误的见解吗

Notice: blenc_compile: unable to read stream, compiling with default compiler. in Unknown on line 0

php.ini

extension=php_blenc.dll
blenc.key_file="C:\Apache24\blenc_key"

blenc_myscript.php

echo 'Printing a secret string: Test';

blenc_encrypt.php

<?php
$source_code = file_get_contents("blenc_myscript.php");
$redistributable_key = blenc_encrypt($source_code, "blenc_myscript.phpe");
$key_file = ini_get('blenc.key_file');
file_put_contents($key_file, $redistributable_key);
?>

blenc_myscript_run.php

<?php
$my_source_encoded = 'blenc_myscript.phpe';
include($my_source_encoded);
?>

<?php
$my_source_encoded = 'blenc_myscript.phpe';
include($my_source_encoded);
?>

Notice: blenc_compile: unable to read stream, compiling with default compiler. in Unknown on line 0

Notice: blenc_compile: unable to read stream, compiling with default compiler. in C:\Apache24\htdocs\blenc_myscript_run.php on line 3
 BLENC1.1.4b50476f24a47b78d81dc5e3e17d462ee8?M?]dH????fZ3?t??7n?4FT????!_????9?