如何将一个巨大的整数转换为十六进制的PHP？ [英] How to convert a huge integer to hex in php?

问题描述

如何将此转换为：

How can I convert this:

9312660682897061594767289296453011313180604726492752614962349778735928598708212386406555876878916185094145420038141655929349984786756296776268556142401047 

以16为基础？

我发现了这个递归函数：

I found this recursive function:

function bcdechex($dec) {
            $last = bcmod($dec, 16);
            $remain = bcdiv(bcsub($dec, $last), 16);

            if($remain == 0) {
                return dechex($last);
            } else {
                return bcdechex($remain).dechex($last);
            }
        }

但是嵌套层次达到100，即使我的xdebug.max_nesting_level = 1000在我的php.ini配置文件中。

but the nesting level of 100 is reached, even if I have xdebug.max_nesting_level = 1000 in my php.ini config file.

我的xdebug配置如下所示：

My xdebug configuration looks like this:

;Xdebug
zend_extension = "${path}\php\php546x121216181946\php_xdebug-2.2.1-5.4-vc9.dll"
xdebug.default_enable=1
xdebug.remote_enable=1
xdebug.remote_host=127.0.0.1
xdebug.remote_port=9000
xdebug.remote_handler=dbgp
xdebug.remote_mode=req
xdebug.remote_autostart = false
xdebug.dump_globals=1
xdebug.dump=COOKIE,FILES,GET,POST,REQUEST,SERVER,SESSION
xdebug.dump.SERVER=REMOTE_ADDR,REQUEST_METHOD,REQUEST_URI
xdebug.show_local_vars=1
xdebug.show_mem_delta=1
xdebug.collect_includes=1
xdebug.collect_vars=1
xdebug.collect_params=4
xdebug.collect_return=1
xdebug.auto_trace=0
xdebug.trace_options=0
xdebug.trace_format=0
xdebug.trace_output_dir="${path}\xdebug\trace"
xdebug.trace_output_name="trace.%t"
xdebug.profiler_enable=0
xdebug.profiler_append=1
xdebug.profiler_enable_trigger=1
xdebug.profiler_output_dir="${path}\xdebug\profiler"
xdebug.profiler_output_name="cachegrind.out.%s.%t"
xdebug.max_nesting_level = 1000
;/Xdebug

函数比这个或任何提示如何我可以转换这个整数？

Does someone have a different function than this or any hint on how I can convert this integer number?

Thnak you！

Thnak you!

推荐答案

修改您发现的迭代函数而非递归函数非常容易：

It's pretty easy to modify the function you found to be iterative rather than recursive:

function bcdechex($dec) {
    $hex = '';
    do {    
        $last = bcmod($dec, 16);
        $hex = dechex($last).$hex;
        $dec = bcdiv(bcsub($dec, $last), 16);
    } while($dec>0);
    return $hex;
}

您的示例 $ bignum 转换为十六进制是：
b1cf5653e79bef001acfb0f99d1f34487d16a8253e3a9971e98d46382114e8ac81b5102ab3c56be1f77d0eb754f566c0dacb23d64755e823f35411f9e14c5617

Your example $bignum converted to hex is: b1cf5653e79bef001acfb0f99d1f34487d16a8253e3a9971e98d46382114e8ac81b5102ab3c56be1f77d0eb754f566c0dacb23d64755e823f35411f9e14c5617

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