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theblackpost
Asked:2020-10-01 20:52:41 +0000 UTC2020-10-01 20:52:41 +0000 UTC

简化 PHP 代码

  • 772

我怎样才能简化这段代码。太多的重复。

$ca0 = round((count_active($dbcnx,0)/$total)*100);
$ca1 = round((count_active($dbcnx,1)/$total)*100);
$ca2 = round((count_active($dbcnx,2)/$total)*100);
$ca3 = round((count_active($dbcnx,3)/$total)*100);
$ca4 = round((count_active($dbcnx,4)/$total)*100);
$ca5 = round((count_active($dbcnx,5)/$total)*100);
$ca6 = round((count_active($dbcnx,6)/$total)*100);
$ca99 = round((count_active($dbcnx,99)/$total)*100);
php

2 个回答

  1. 您可以像这样收集变量名

     for ($i = 0; $i < 100; $i++) {
   ${'ca'.$i} = round((count_active($dbcnx,$i)/$total)*100);
}

    但老实说，我认为你需要制作一个数组 - 然后处理它，所有这些变量

    • 4
  2. Best Answer

    存储在变量中最初是个坏主意，最好不要产生一堆相同类型的变量并将数据存储在数组中

    for ($i = 0; $i < 100; $i++) {
   $ca[$i] = round((count_active($dbcnx,$i)/$total)*100);
}

    还要查看这些函数以在将来处理数组

    https://www.php.net/manual/en/function.array-walk.php

    https://www.php.net/manual/en/function.array-walk.php

    • 4

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