在 php 解包函数中搜索正确的格式

Question

输出是代码的结果：

    $bytes= fread($handle,"32");
    print_r(unpack("La/fb/fc/fd/fe/ff/fg/fh",$bytes)); 


Array ( [a] => 20150416 [b] => 1.0499999523163 [c] => 1.25 [d] => 1.0299999713898 
[e] => 1.1900000572205 [f] => 509427008 [g] => 566125248 [h] => 509427008 )

如果想要的输出如下，如何在 unpack 中写入正确的格式？

Array ( [1] => 20150416 [2] => 1.0499999523163 [3] => 1.25 [4] => 1.0299999713898 
[5] => 1.1900000572205 [6] => 509427008 [7] => 566125248 [8] => 509427008 )

Answer 1

使用array_values，它保持顺序（第一个索引为0）：

$bytes = fread($handle,"32");
$un = unpack("La/fb/fc/fd/fe/ff/fg/fh",$bytes);
print_r(array_values($un));

编辑（如果你想要第一个索引 1）：

$bytes = fread($handle,"32");
$un = unpack("La/fb/fc/fd/fe/ff/fg/fh",$bytes);
array_unshift($un, NULL);
$array = array_values($un);
unset($array[0]);
print_r($array);

在 php 解包函数中搜索正确的格式

Searching the proper format in php unpack function

php

format

unpack