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sunmeat/different files.html

Last active July 11, 2025 14:10
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client server request (backend PHP demo, get html)
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different files.html
http://www.sunmeat.site/aspnet/webdemo/calc.html:
<html>
<head>
<meta charset="UTF-8" />
</head>
<body bgcolor="#aab7ab">
<h2 align="center">Калькулятор</h2>
<form action="calc.php" method="get">
<table align="center" cellspacing="9">
<tr>
<td colspan="3">Первое число:</td>
<td colspan="3"><input type="text" name="num1" value="0" /></td>
</tr>
<tr>
<td colspan="3">Второе число:</td>
<td colspan="3"><input type="text" name="num2" value="0"/></td>
</tr>
<tr>
<td><input type="radio" name="operation" value="plus"> + </input></td>
<td><input type="radio" name="operation" value="minus"> - </input></td>
<td><input type="radio" name="operation" value="multiply"> * </input></td>
<td><input type="radio" name="operation" value="divide"> / </input></td>
</tr>
<tr>
<td colspan="4" align="center"><input type="submit" /></td>
</tr>
</table>
</form>
</body>
</html>
===================================================================================================================
http://www.sunmeat.site/aspnet/webdemo/calc.php:
<html>
<head>
</head>
<body bgcolor="#aab7ab">
<h2>Результат:</h2>
<h1>
<?php
$num1 = $_GET["num1"];
$num2 = $_GET["num2"];
if ( !is_numeric($num1) || !is_numeric($num2) )
{
echo "Необходимо ввести два числа!";
return;
}
if (!isset($_GET["operation"]))
{
echo "Что вообще Вы хотели сделать с числами?";
return;
}
$operation = $_GET["operation"];
switch ($operation)
{
case "plus":
echo($num1 + $num2);
break;
case "minus":
echo($num1 - $num2);
break;
case "multiply":
echo($num1 * $num2);
break;
case "divide":
if ($num2 == 0)
echo "А Вы знали, что на ноль делить нельзя?";
else
echo($num1 / $num2);
break;
}
?>
</h1>
</body>
</html>
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