我写了一个php文件计算器.php将结果发布到info.php，我写了另一个 php 文件 -计算器2.php将结果发布到同一页面。我怎样才能将它们结合在一起？我尝试了一个又一个地放置，但没有成功。
计算器.php
<FORM action="info.php" method="post">
<P>
<LABEL for="firstNum">First Number: </LABEL>
<INPUT type="text" name="firstNum" id="firstNumberLabel"><BR>
<LABEL for="secondNum">Second Number: </LABEL>
<INPUT type="text" name="secondNum" id="secondNumberlabel"><BR>
<INPUT type="radio" name="calc" value="1"> Add<BR>
<INPUT type="radio" name="calc" value="2"> Subtract<BR>
<INPUT type="radio" name="calc" value="3"> Multiply<BR>
<INPUT type="radio" name="calc" value="4"> Divide<BR>
<INPUT type="submit" value="Send">
<INPUT type="reset">
</P>
</FORM>
info.php 文件
<?php
switch ($_POST["calc"]){
case "1":
echo "Result: ", $_POST['firstNum']+$_POST['secondNum'], "<br>";
break;
case "2":
echo "Result: ", $_POST['firstNum']-$_POST['secondNum'], "<br>";
break;
case "3":
echo "Result: ", $_POST['firstNum']*$_POST['secondNum'], "<br>";
break;
case "4":
echo "Result: ", $_POST['firstNum']/$_POST['secondNum'], "<br>";
break;
default:
break;
}
?>
计算器2.php
<form action= <?php echo $_SERVER['PHP_SELF'] ?> method="post">
<label for="text_field">First Number: </LABEL>
<input type="text" name="user_text" id="text_field"><BR>
<label for="text_field2">Second Number: </LABEL>
<input type="text" name="user_text2" id="text_field2"><BR>
<input type="submit" value="Add">
</form>
<?php
if(isset($_POST['user_text'])&&isset($_POST['user_text2']))
echo $_POST['user_text']+$_POST['user_text2'];
?>
<FORM action="info.php" method="post">
<P>
<LABEL for="firstNum">First Number: </LABEL>
<INPUT type="text" name="firstNum" id="firstNumberLabel"><BR>
<LABEL for="secondNum">Second Number: </LABEL>
<INPUT type="text" name="secondNum" id="secondNumberlabel"><BR>
<INPUT type="radio" name="calc" value="1"> Add<BR>
<INPUT type="radio" name="calc" value="2"> Subtract<BR>
<INPUT type="radio" name="calc" value="3"> Multiply<BR>
<INPUT type="radio" name="calc" value="4"> Divide<BR>
<INPUT type="submit" value="Send">
<INPUT type="reset">
</P>
</FORM>
<form action= <?php echo $_SERVER['PHP_SELF'] ?> method="post">
<label for="text_field">First Number: </LABEL>
<input type="text" name="firstNum" id="text_field"><BR>
<label for="text_field2">Second Number: </LABEL>
<input type="text" name="secondNum" id="text_field2"><BR>
<INPUT type="radio" name="calc" value="1"> Add<BR>
<INPUT type="radio" name="calc" value="2"> Subtract<BR>
<INPUT type="radio" name="calc" value="3"> Multiply<BR>
<INPUT type="radio" name="calc" value="4"> Divide<BR>
<INPUT type="submit" value="Send">
</form>
<?php
switch ($_POST["calc"]){
case "1":
echo "Result: ", $_POST['firstNum']+$_POST['secondNum'], "<br>";
break;
case "2":
echo "Result: ", $_POST['firstNum']-$_POST['secondNum'], "<br>";
break;
case "3":
echo "Result: ", $_POST['firstNum']*$_POST['secondNum'], "<br>";
break;
case "4":
echo "Result: ", $_POST['firstNum']/$_POST['secondNum'], "<br>";
break;
default:
break;
}
?>
并使用与之前相同的 info.php
<?php
switch ($_POST["calc"]){
case "1":
echo "Result: ", $_POST['firstNum']+$_POST['secondNum'], "<br>";
break;
case "2":
echo "Result: ", $_POST['firstNum']-$_POST['secondNum'], "<br>";
break;
case "3":
echo "Result: ", $_POST['firstNum']*$_POST['secondNum'], "<br>";
break;
case "4":
echo "Result: ", $_POST['firstNum']/$_POST['secondNum'], "<br>";
break;
default:
break;
}
?>
问题是我认为有很多重复的代码
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