仅使用 PHP 将字节添加到二进制文件?
我正在尝试使用 php 将随机字节添加到二进制(.exe)文件以增加其大小。 到目前为止我得到了这个:
function junk($bs)
{
// string length: 256 chars
$tmp = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
for($i=0;$i<=$bs;$i++)
{
$tmp = $tmp . $tmp;
}
return $tmp;
}
$fp = fopen('test.exe', 'ab');
fwrite($fp, junk(1));
fclose($fp);
这工作正常并且生成的 exe 可以正常工作,但是如果我想做垃圾(100)来向文件添加更多大小,我会收到 php 错误“致命错误:允许的内存大小...”
其中我可以通过其他方式实现这一点而不会出现错误吗?循环 fwrite xxx 次可以吗?
I am trying to add random bytes to binary (.exe) files to increase it size using php.
So far I got this:
function junk($bs)
{
// string length: 256 chars
$tmp = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
for($i=0;$i<=$bs;$i++)
{
$tmp = $tmp . $tmp;
}
return $tmp;
}
$fp = fopen('test.exe', 'ab');
fwrite($fp, junk(1));
fclose($fp);
This works fine and the resulting exe is functional but if I want to do junk(100) to add more size to the file I get the php error "Fatal error: Allowed memory size..."
In which other way could I achieve this without getting an error? Would it be ok to loop the fwrite xxx times?
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我会尝试这个:
另外,就我个人而言,如果您所写的字符对应于 NOP,我会更喜欢。
但是,如果有效的话,它就会有效......
I would try this:
also, personaly i would prefer if the charactor you were writing coresponded to NOP.
But, if it works, it works...
是的,多次循环 fwrite() 应该达到相同的效果。
Yes, looping the fwrite() multiple times should achieve the same effect.