我试图在php中实现一个解析器，它读取各种大小的二进制文件（例如$ fsize）。在这些文件中有重复的16字节序列，我想独立处理（一次一个16字节序列）。我已经设法以以下形式读取和隔离每个这样的16字节序列：
处理样本[2] ......
打印16个样本字节
$ bit_sequence = '10000000010111001000000001100111011010110110011110100110101000100111011100111111000100000000000010100011010010101001101111101000'
数组：
$ bits =（[0] =＆gt; 1 [1] =＆gt; 0 [2] =＆gt; 0 [3] =＆gt; 0 [4] =＆gt; 0 [5] =＆gt; 0 [ 6] =＆gt; 0 [7] =＆gt; 0 [8] =＆gt; 0 [9] =＆gt; 1 [10] =＆gt; 0 [11] =＆gt; 1 [12] =＆gt; 1 [13 ] =＆gt; 1 [14] =＆gt; 0 [15] =＆gt; 0 [16] =＆gt; 1 [17] =＆gt; 0 [18] =＆gt; 0 [19] =＆gt; 0 [20] =＆gt; 0 [21] =＆gt; 0 [22] =＆gt; 0 [23] =＆gt; 0 [24] =＆gt; 0 [25] =＆gt; 1 [26] =＆gt; 1 [27] = ＆gt; 0 [28] =＆gt; 0 [29] =＆gt; 1 [30] =＆gt; 1 [31] =＆gt; 1 [32] =＆gt; 0 [33] =＆gt; 1 [34] =＆gt; ; 1 [35] =＆gt; 0 [36] =＆gt; 1 [37] =＆gt; 0 [38] =＆gt; 1 [39] =＆gt; 1 [40] =＆gt; 0 [41] =＆gt; 1 [42] =＆gt; 1 [43] =＆gt; 0 [44] =＆gt; 0 [45] =＆gt; 1 [46] =＆gt; 1 [47] =＆gt; 1 [48] =＆gt; 1 [49] =＆gt; 0 [50] =＆gt; 1 [51] =＆gt; 0 [52] =＆gt; 0 [53] =＆gt; 1 [54] =＆gt; 1 [55] =＆gt; 0 [ 56] =＆gt; 1 [57] =＆gt; 0 [58] =＆gt; 1 [59] =＆gt; 0 [60] =＆gt; 0 [61] =＆gt; 0 [62] =＆gt; 1 [63] ] =＆gt; 0 [64] =＆gt; 0 [65] =＆gt; 1 [66] =＆gt; 1 [67] =＆gt; 1 [68] =＆gt; 0 [69] =＆gt; 1 [70] =＆gt; 1 [71] =＆gt; 1 [72] =＆gt; 0 [73] =＆gt; 0 [74] =＆gt; 1 [75] =＆gt; 1 [76] =＆gt; 1 [77] =＆gt; 1 [78] =＆gt; 1 [79] =＆gt; 1 [80] =＆gt; 0 [81] =＆gt; 0 [82] =＆gt; 0 [83] =＆gt; 1 [84] =＆gt; 0 [85] =＆gt; 0 [86] =＆gt; 0 [87] =＆gt; 0 [88] =＆gt; 0 [89] =＆gt; 0 [90] =＆gt; 0 [91] =＆gt; 0 [92] =＆gt; 0 [93] =＆gt; 0 [94] =＆gt; 0 [95] =＆gt; 0 [96] =＆gt; 1 [97] =＆gt; 0 [98] =＆gt; 1 [99] =＆gt; 0 [100] =＆gt; 0 [101] =＆gt; 0 [102] =＆gt; 1 [103] =＆gt; 1 [104] =＆gt; 0 [105] =＆gt; 1 [106] =＆gt; 0 [107] =＆gt; 0 [108] =＆gt; 1 [109] =＆gt; 0 [110] =＆gt; 1 [111] =＆gt; 0 [112] =＆gt; 1 [113] =＆gt; 0 [114] =＆gt; 0 [115] =＆gt; 1 [116] =＆gt; 1 [117] =＆gt; 0 [118] =＆gt; 1 [119] =＆gt; 1 [120] =＆gt; 1 [121] =＆gt; 1 [122] =＆gt; 1 [123] =＆gt; 0 [124] =＆gt; 1 [125] =＆gt; 0 [126] =＆gt; 0 [127] =＆gt; 0）
我还有一个数组，其中包含我想要存储上述信息的变量...
阵列：
$ variables =（[0] =＆gt; wide_avg_txon [1] =＆gt; wide_avg [2] =＆gt; wide_peak_rms [3] =＆gt; wide_peak [4] =＆gt; low_pw [5] =＆gt; low_pp [ 6] =＆gt; high_pw [7] =＆gt; high_pp [8] =＆gt; battery_voltage [9] =＆gt; temperature_spr_flag [10] =＆gt;温度[11] =＆gt; alarm_abat [12] =＆gt; alarm_amem [13 ] =＆gt; alarm_atmp [14] =＆gt; alarm_alck [15] =＆gt; alarm_prx [16] =＆gt; alarm_arpb [17] =＆gt; alarm_awrn [18] =＆gt; alarm_aalr [19] =＆gt; mask_mbat [20] =＆gt; mask_mmem [21] =＆gt; mask_mtmp [22] =＆gt; mask_mlck [23] =＆gt; mask_smx [24] =＆gt; mask_mprb [25] =＆gt; mask_mwrn [26] =＆gt; mask_malr [27] = ＆gt; sample_rate [28] =＆gt; avg_period [29] =＆gt; months [30] =＆gt; date_time）
我的目标是找到一种方法来处理整个128位序列，就像一个包含128个元素的数组，并且可以选择以这样的方式提取：
位[0] - ＆gt;存储在变量$ wide_avg_txon（boolean）
中位[1-> 15] - ＆gt;存储在变量$ wide_avg（15位unsigned int）
中位[16] - ＆gt;存储在变量$ wide_peak_rms（boolean）
中位[17-> 31] - ＆gt;存储在变量$ wide_peak（15位unsigned int）
中位[32-> 39] - ＆gt;存储在变量$ low_pw（8位无符号整数）
中....（依此类推）
位[112-＆GT; 127] - GT;存储在变量$ date_time（16位无符号整数）
中
我在php和编程方面都很新......
我不知道它是否是最佳解决方案......但我已设法使用如下代码将表示1,8或16位二进制序列的字符串存储到变量中：
$ wide_avg_txon = substr（$ bit_sequence，0,1）;
// wide_avg_txon：1
$ wide_avg ='0'.substr（$ bit_sequence，1,15）;
// wide_avg：0000000001100000
$ wide_peak_rms = substr（$ bit_sequence，16,1）;
// wide_peak_rms：1
$ wide_peak ='0'.substr（$ bit_sequence，17,15）;
// wide_peak：0000000001100100
现在我需要以某种方式处理这些字符串（代表二进制数字）并以数字方式转换为十进制数字......
对我发布的解决方案的任何建议都是有用的，欢迎......
答案 0 :(得分：1)
事实上，我设法使用非常脏的方式根据需要打破了128位序列：
$ wide_avg ='0'.substr（$ bit_sequence，1,15）;
$ wide_avg_dec = bindec（$ wide_avg）;
echo“wide_avg：”。 $ wide_avg。 “和十进制：”。 $ wide_avg_dec。 “”;
依旧......
答案 1 :(得分：0)
看来你只是从一个字符串中创建一个数组：
function getArrayFromString($string)
{
$length = strlen($string);
$ret = array();
for ($i = 0; $i < $length; $i++)
{
$ret[] = $string[$i];
}
}
然而，听起来你正在使用像flag这样的字节序列。这应该就像你需要的那样：
define("ADMIN_PRIV", 1); // 1<<1
define("DEV_PRIV", 4); // 1<<3
if ($byte & ADMIN_PRIV)
{
// this user is admin
}
但是，PHP的整数只有32位长（4个字节），因此这是您可以使用的最多。所以我会按字节工作。