Question

我无法获取我的PHP代码将我的$ result变量写入XML文件。它确实编写了我刚刚为测试添加的$ number1变量，但它不想添加$ result。我需要这个，所以我可以为我的计算器制作一个记忆和记忆回忆按钮。这是一个学校项目，我必须使用XML。感谢。

＆＃13;

<?php

	$number1 = $_POST['number1'];
	$number2 = $_POST['number2'];;
	$operator = $_POST['operator'];
	
	if ($operator == 'subtract'){
	subtract();
	}
	
	if ($operator == 'add'){
	add();
	}
	
	if ($operator == 'multiply'){
	multiply();
	}
	
	if ($operator == 'divide'){
	divide();
	}
	
	function add() {
		global $number1;
		global $number2;
		
		$result = $number1 + $number2;
		echo $result;
	}
	function subtract() {
		global $number1;
		global $number2;
		
		$result = $number1-$number2; 
		echo $result;
	}
	function multiply() {
		global $number1;
		global $number2;
		
		$result = $number1*$number2; 
		echo $result;
	}
	function divide() {
		global $number1;
		global $number2;
		
		$result = $number1/$number2;
		echo $result;
	}
	
$handle = fopen('Data.xml', 'w');

fwrite($handle, "<inputs>\n\t<input>\n\t\t<answer>".$result."</answer>\n\t\t<number1>".$number1."</number1>\n\t</input>\n</inputs>");

fclose($handle);



echo "Write to input.xml successfully";
	
?>

<html>
	<center> 
	<h1 style="color:blue;">Rohit's Math Machine</h1> 
	 <form action="Code.php" method="POST">
		Enter Number 1: <input type="text" name="number1" method="POST"><br><br>
		
				 <select name="operator" method="POST">
				 
					<option value="subtract">subtract</option>
					<option value="add">add</option>
					<option value="multiply">multiply</option>
					<option value="divide">divide</option>
					
				</select><br><br>
				
		Enter Number 2: <input type="text" name="number2" method="POST"><br><br>
		<input type="submit" value="Submit">
	</form> 
	</center>

</html>

＆＃13;

PHP无法将变量写入XML文件

0 个答案: