PHP计算器 PHP实现简单的计算器

时间:2021-03-16 浩然正气，天地长存人气:0

想了解PHP实现简单的计算器的相关内容吗，浩然正气，天地长存在本文为您仔细讲解PHP计算器的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：PHP,计算器，下面大家一起来学习吧。

caculator.php

<html>
<head>
 
</head>
<body>
 
<?php
if (!empty($_POST)) {
  $data1 = $_POST["data1"];
  $data2 = $_POST["data2"];
  $fuhao = $_POST["fuhao"];
  $result = "";
 
  echo $data1;
  echo $data2;
  echo $fuhao;
  echo $result;
 
 
  if ($fuhao == '+') {
    $result = $data1 + $data2;
  } else if ($fuhao == '-') {
    $result = $data1 - $data2;
  } else if ($fuhao == '*') {
    $result = $data1 * $data2;
  } else if ($fuhao == '/') {
    $result = $data1 / $data2;
  }
} else {
  $data1 = "";
  $data2 = "";
  $fuhao = "";
  $result = "";
}
 
?>
 
<form action="caculator.php" method="post">
  <input type="text" name="data1" value="<?php echo $data1; ?>"/>
  <select name="fuhao">
 
    <option value="+"
        <?php if ($fuhao == "+") {
          echo 'selected="selected"';
        } ?>>+
    </option>
    <option value="-"
        <?php if ($fuhao == "-") {
          echo 'selected="selected"';
        } ?>>-
    </option>
    <option value="*"
        <?php if ($fuhao == "*") {
          echo 'selected="selected"';
        } ?>>*
    </option>
    <option value="/"
    <?php if ($fuhao == "/") {
      echo 'selected="selected"';
    } ?>>/
    </option>
 
    </option>
  </select>
  <input type="text" name="data2" value="<?php echo $data2; ?>"/>
  <input type="submit" value="="/>
  <input name="result" type="text" value="<?php echo $result; ?>"/>
  <input type="reset"/>
 
</form>
 
 
</body>
</html>

运行结果：

加载全部内容