试图检查,看看是否该文件已经存在,但它不工作LINE 6如何检查数据库中是否存在文件?
if(isset($_POST['upload']) && $_FILES['userfile']['size'] > 0)
{
$fileName = $_FILES['userfile']['name'];
$tmpName = $_FILES['userfile']['tmp_name'];
$fileSize = $_FILES['userfile']['size'];
$fileType = $_FILES['userfile']['type'];
if (file_exists($_FILES['userfile']['name']))
{
echo $_FILES['userfile"]["name'] . " already exists. ";
}else{
$fp= fopen($tmpName, 'r');
$content = fread($fp, filesize($tmpName));
$content = addslashes($content);
fclose($fp);
if(!get_magic_quotes_gpc())
{
$fileName = addslashes($fileName);
}
//include 'library/config.php';
//include 'library/opendb.php';
$query = "INSERT INTO upload (name, size, type, content)
VALUES ('$fileName', '$fileSize', '$fileType', '$content')";
mysql_query($query) or die('Error, query failed');
//include 'library/closedb.php';
echo "<br>File $fileName uploaded<br>";
}
}
'file_exists'将检查_filesystem_,并且如果文件(或目录)已存在_at所提供的path_中,将返回true。请参阅[文档](http://php.net/file-exists)。它不检查数据库。 –
首先'print_r($ _ FILES ['userfile'] ['name']);'看看你在检查什么以及它是否适合你的系统。 –
运行该代码,它显示数据库中的文档 –