=== PHP代码加密演示 ===

原始代码:

$a = 10;
$b = 20;
$sum = $a + $b;
echo "总和: " . $sum . "\n";

if ($sum > 25) {
    echo "大于25\n";
} else {
    echo "小于等于25\n";
}

$i = 0;
while ($i < 3) {
    echo "循环: " . $i . "\n";
    $i = $i + 1;
}

执行结果:
总和: 30
大于25
循环: 0
循环: 1
循环: 2

加密过程...

加密后的字节码:
Array
(
    [0] => while_start_0:
    [1] => Array
        (
            [0] => 5
            [1] => R6
            [2] => R1
        )

    [2] => Array
        (
            [0] => 7
            [1] => R0
            [2] => while_end_0
        )

    [3] => Array
        (
            [0] => 11
            [1] => R1
        )

    [4] => Array
        (
            [0] => 6
            [1] => while_start_0
        )

    [5] => while_end_0:
    [6] => Array
        (
            [0] => 255
        )

)

使用虚拟机执行加密代码的结果: