Question

enter image description here 我有一个带有三个按钮的表单..一个按钮是在另一个页面中编辑表单，第二个是在现有页面上添加值，第三个是删除它的值..提交和编辑效果很好..现在我需要处理删除按钮..因为它是一个按钮..我无法通过$_POST或$_GET获得价值而$_REQUEST我做了类似的事情。。

<form method="POST">
  <input type="text" name="example_text" />

  <a href="index.php?del">
    <input type="button" value="Delete" />
  </a>
  <!-- works fine !-->
  <a href="someotherpage.php">
  <input type="button" value="edit" />
    </a>
  <!-- works fine !-->
  <input type="submit" name="submit" />
  </form>

<?php 
if(isset($_POST['submit']))
{
echo "submit can get value by $_POST";
$name = $_POST['example_text'];
}
if(isset($_GET['del']))
{
$name = $_REQUEST['example_text']; // this can't get value;
$name = $_POST['example_text'];  // this can't get value;
$name = $_GET['example_text']; // this can't get value;
}
?>

Answer 1

替换

<a href="index.php?del">
    <input type="button" value="Delete" />
  </a>

到

<input type="submit" value="Delete" name="del"/>

为每个按钮指定一个名称，以便检查已提交的按钮

单击检查删除按钮

if(isset($_POST['del'])) {
}

Answer 2

尝试一下它会正常工作：

<html>
<head>
<script>
function button1()
{
var r=  document.getElementById('example_text').value;

window.location="getdetails.php?data="+r;
}
function button2()
{
var r=  document.getElementById('example_text').value;

window.location="getdetails.php?data="+r;
}
</script>
</head>
<body>
<form method="POST">
  <input type="text" name="example_text" id="example_text"/>

  <a href="index.php?del">
    <input type="button" value="Delete" onclick="button1()"/>
  </a>
  <!-- works fine !-->
  <a href="someotherpage.php">
  <input type="button" value="edit" onclick="button1()"/>
    </a>
  <!-- works fine !-->
  <input type="submit" name="submit" />
  </form> 
</body>
</html>

Answer 3

错字：

更改

$name = $_REQUESR['example_text']; // this can't get value;

要：

$name = $_REQUEST['example_text']; // this can't get value;

Answer 4

试试这个：

<form method="POST">
  <input type="text" name="example_text" />

  <input type="submit" name="delete" value="Delete" />

  <a href="someotherpage.php">
    <input type="button" name="edit" value="Edit" />
  </a>

  <input type="submit" name="submit" value="Submit" />
</form>

<?php

    if(isset($_REQUEST['submit']))
    {
        $name = $_REQUEST['example_text'];
        echo "Submit method: ".$name;
    }

    if(isset($_REQUEST['delete']))
    {
        $name = $_REQUEST['example_text'];
        echo "Delete method: ".$name;
    }

?>

通过按钮点击从表单获取价值？没有提交

4 个答案: