PHP上传-为什么isset($ _ POST ['submit'])始终为FALSE [英] PHP upload - Why isset($_POST['submit']) is always FALSE
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问题描述
我有以下代码示例upload3.php:
I have the following code sample upload3.php:
<html>
<head>
<title>PHP Form Upload</title>
</head>
<body>
<form method='post' action='upload3.php' enctype='multipart/form-data'>
Select a File:
<input type='file' name='filename' size='10' />
<input type='submit' value='Upload' />
</form>
<?php
if (isset($_POST['submit']))
{
echo "isset submit";
}
else
{
echo "NOT isset submit";
}
?>
</body>
</html>
代码始终返回"NOT isset Submit". 为什么会这样?因为相同的脚本upload3.php会自己调用?
The code always returns "NOT isset submit". Why does this happen? Because the same script upload3.php calls itself?
推荐答案
您没有名为"
"的提交按钮.
更改
You do not have your submit button named:
Change
<input type='submit' value='Upload' />
收件人:
<input type='submit' value='Upload' name="submit"/>
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