php - 对于每个循环都不起作用 php

Question

我无法弄清楚为什么每个循环都不起作用。当我打印出结果时，它会根据薪水数组正确显示，但是当我稍后尝试在代码中使用数据（做薪水 * 税）时，它只是执行它并且不会相应地循环。我非常编码新手，请理解：P

<?php




$salaries =array(
635000.00, 420000.00, 260000.00, 150000.00, 550000.00, 90000.00);
foreach ($salaries as $a)
{
if ($a >= 500000) 
{$t =0.45;
echo $t;
}
else
{
if ($a>=300000 and ($a<=500000))
{$t=0.35;
echo $t;
}
if ($a>=200000 and ($a<=300000))
{$t=0.2;
echo $t;
}
if ($a>=100000 and ($a<=200000))
{$t=0.1;
echo $t;
{
if ($a>= 100000) 
{$t =0;
echo $t;    
}}}}}




?>
($salaries[0]*$t) 

工作正常，但在我为其他成员提供的数组中，它一直选择 0.45% 作为正确的税额。

Answer 1

我发现你想计算每份工资的税金，在这种情况下（使用你的编码风格）：

<?php
$salaries = array(
  635000.00,
  420000.00,
  260000.00,
  150000.00,
  550000.00,
  90000.00
);
foreach ($salaries as $salary) {
  if ($salary >= 500000) {
    $tax = 0.45;
    echo "<p>Salary: $salary x Tax: $tax = " . $salary * $tax . "</p>";
  } else {
    if ($salary >= 300000 and ($salary <= 500000)) {
      $tax = 0.35;
      echo "<p>Salary: $salary x Tax: $tax = " . $salary * $tax . "</p>";
    }
    if ($salary >= 200000 and ($salary <= 300000)) {
      $tax = 0.2;
      echo "<p>Salary: $salary x Tax: $tax = " . $salary * $tax . "</p>";
    }
    if ($salary >= 100000 and ($salary <= 200000)) {
      $tax = 0.1;
      echo "<p>Salary: $salary x Tax: $tax = " . $salary * $tax . "</p>"; {
        if ($salary <= 100000) {
          $tax = 0;
          echo "<p>Salary: $salary x Tax: $tax = " . $salary * $tax . "</p>";
        }
      }
    }
  }
}
?>

输出：

Salary: 635000 x Tax: 0.45 = 285750
Salary: 420000 x Tax: 0.35 = 147000
Salary: 260000 x Tax: 0.2 = 52000
Salary: 150000 x Tax: 0.1 = 15000
Salary: 550000 x Tax: 0.45 = 247500

Answer 2

即使这段代码对于它在做什么没有多大意义，这里有一个修复：

$salaries =array(635000.00, 420000.00, 260000.00, 150000.00, 550000.00, 90000.00);
foreach($salaries as $a)
{
    if ($a >= 500000) 
    {
        $t =0.45;
        echo $t;
    }
    elseif ($a>=300000 and ($a<=500000))
    {
        $t=0.35;
        echo $t;
    }
    elseif ($a>=200000 and ($a<=300000))
    {
        $t=0.2;
        echo $t;
    }
    elseif ($a>=100000 and ($a<=200000))
    {
        $t=0.1;
        echo $t;
    }
    else
    {
        $t =0;
        echo $t;    
    }
}