HTML表单不能与图像提交按钮一起使用？ [英] HTML form not working with image submit button?
问题描述
< html>
< head>
< link href =style.css =stylesheettype =text / css>
< / head>
< form action =test1.phpenctype =multipart / form-datamethod =POST>
< input type =hiddenname =playnovalue =testing>
< input type =imagesrc =uploads / defb.pngname =submitvalue =submit/>
< / form>
< / html>
以下内容保存在test1.php中：
<？php
$ hiddenvalue = $ _POST ['playno'];
if（isset（$ _ POST ['submit']））{
echoOK;
}
else
{
echoerror;
}
？>
在broswer中，当我打印$ hiddenvalue时，返回值testing。然而，每次输出错误的时候，都不是OK。
我非常感谢任何帮助。这让我疯狂！
非常感谢。
input type =image / code>，浏览器发送 submit_x 和 submit_y 。
所以在PHP中， $ _ POST ['submit'] 将不可用，但 $ _ POST ['submit_x'] 和 $ _ POST ['submit_y'] 将被定义（包含点击图像的X / Y坐标）。
I have the following html form i am testing out.
<html>
<head>
<link href = "style.css" rel = "stylesheet" type = "text/css">
</head>
<form action = "test1.php" enctype = "multipart/form-data" method = "POST">
<input type = "hidden" name = "playno" value = "testing">
<input type = "image" src = "uploads/defb.png" name = "submit" value = "submit"/>
</form>
</html>
The following is saved in "test1.php":
<?php
$hiddenvalue = $_POST['playno'];
if (isset($_POST['submit'])){
echo "OK";
}
else
{
echo "error";
}
?>
In the broswer i am returned the value "testing" when i print $hiddenvalue. However each and every time it outputs "error" as well, not "OK".
I would greatly appreciate any help. It is driving me mad!!!
Many thanks in advance.
解决方案 When using a input type="image", the browser sends submit_x and submit_y.
So in PHP, $_POST['submit'] will not be available, but $_POST['submit_x'] and $_POST['submit_y'] will be defined (containing the X/Y coordinates where the image was clicked on).
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