<?php
$_FILES['upfile']['name']; //这段代码提示出错!!!
?><form action="" method="post" enctype="multipart/form-data"><input name="upfile" type="file" /></form>下面是提示信息!!!
Notice: Undefined index: upfile in C:\wamp\www\1\upfile.php on line 3这是我完全按照教程操作的啊!怎么会报错呢??这样我就没有办法学下去了!请高手指教!!
$_FILES['upfile']['name']; //这段代码提示出错!!!
?><form action="" method="post" enctype="multipart/form-data"><input name="upfile" type="file" /></form>下面是提示信息!!!
Notice: Undefined index: upfile in C:\wamp\www\1\upfile.php on line 3这是我完全按照教程操作的啊!怎么会报错呢??这样我就没有办法学下去了!请高手指教!!
if (isset($_FILES['upfile'])) echo $_FILES['upfile']['name'];
$str = 'Test';
echo '$str';
echo "$str";
单引号中的转义字符是无效的(除了\')。
//41是字母A的十进制ASCII码
echo '\'\x41\'';
echo "\x41";