duanliang2017 2013-02-02 23:53
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HTML表单无法使用图片提交按钮?

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.

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3条回答 默认 最新

  • dongyuan4790 2013-02-03 00:04
    关注

    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).

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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