变量值不能赋给另一个变量 - Variable Value cannot be assigned to another variable

Variable Value cannot be assigned to another variable

HTML CODE HERE

php代码中for循环出现错误

 <html>
 <head><title>Hello
  </title></head>
   <body>
     <form id="cool" name ="form" action ="hi.php">
      <input type ="text" name="m1" value="m1"/>
          </br><input type ="text" name="m2" value="m2">
          </br><input type ="text" name="m3" value="m3">
          </br><input type ="text" name="m4" value="m4">
          </br><input type ="text" name="m5" value="m5">
          <input type="submit" >
         </form>
         </body>
         </html>

这是php代码，它在第6行说未定义索引，这里mem获取值m1 m2 m3 m4，但从mem提取值不工作

<?php
for ($i = 1; $i < 5; $i++) {
    $mem = 'm' . $i;
    $m = $_POST[$mem];
    print " The member is" . $m . "</br>";
}
?>

您需要在表单标签中添加method="POST"

 <form id="cool" name ="form" action ="hi.php" method="POST">

使用此<form id="cool" name ="form" action ="hi.php" method="post">

而不是<form id="cool" name ="form" action ="hi.php">