我想让我的用户上传图像只是在PNG和JPG和JPEG文件类型。所以我在我的html文件中使用以下代码:
<!DOCTYPE html>
<html lang="fa" dir="rtl">
<head>
<meta charset="utf-8" />
<link href="assets/css/style.css" rel="stylesheet" />
<script type="text/javascript" src='jquery.min.js' ></script>
<script type="text/javascript">
//<![CDATA[
function upload_start(){
document.getElementById('upload-process').style.visibility = 'visible';
return true;
}
function upload_end(check_upload){
var server_response = '';
if (check_upload == 1){
server_response = '<span class="ok">File Uploaded<'/span>';
}
else {
server_response = '<span class="error">file Upload error<'/span>';
}
document.getElementById('upload-process').style.visibility = 'hidden';
document.getElementById('upload-form').innerHTML = server_response;
return true;
}
//]]>
</script>
</head>
<body>
<form action="php-ajax-upload.php" method="post" enctype="multipart/form-data" target="upload-target" onsubmit="upload_start();">
<label for="user-file"></label>
<input type="file" id="user-file" name="user-file" />
<input type="hidden" name="customer_id" value="6000" />
<input type="submit" value="Upload File" />
</form>
， php-ajax-upload.php含量为:
<html>
<head>
<link href="assets/css/style.css" rel="stylesheet" />
</head>
<body>
<?php
$customer_id = $_POST['customer_id'] ;
if ( ($_FILES["user-file"]["type"] == "image/jpeg" )|| ($_FILES["user-file"]["type"] == "image/jpg" )|| ($_FILES["user-file"]["type"] == "image/png" ) )
{
if ($_FILES["user-file"]["error"] > 0){
echo "<div class='"server'">Error: " . $_FILES["user-file"]["error"] . "</div><br />";
$check_result = 0;
}
else{
if (file_exists("user-upload/" . $_FILES["user-file"]["name"])){
echo "<div class='"server'">This file exists <br /><br />".$_FILES["user-file"]["name"]. "</div><br />";
$check_result = 0;
}
else{
if(isset($_POST['customer_id']) && !empty($_POST['customer_id']) )
{
$customer_id = trim($_POST['customer_id']);
$filename = basename($_FILES['user-file']['name']);
$format = pathinfo($filename, PATHINFO_EXTENSION);
$saved_file_name = $customer_id.'.'.$format ;
if(is_writable(dirname(__FILE__) . './admin-upload/'. $saved_file_name))
{
unlink(dirname(__FILE__) . './admin-upload/'. $saved_file_name );
}
if(is_writable(dirname(__FILE__) . './admin-upload/'.$customer_id.'.jpeg'))
{
unlink(dirname(__FILE__) . './admin-upload/'.$customer_id.'.jpeg' );
}
if(is_writable(dirname(__FILE__) . './admin-upload/'.$customer_id.'.jpg'))
{
unlink(dirname(__FILE__) . './admin-upload/'.$customer_id.'.jpg' );
}
if(is_writable(dirname(__FILE__) . './admin-upload/'.$customer_id.'.png'))
{
unlink(dirname(__FILE__) . './admin-upload/'.$customer_id.'.png' );
}
move_uploaded_file($_FILES["user-file"]["tmp_name"],"admin-upload/".$customer_id.'.'.$format ) ;
$check_result = 1;
}
else
{
echo 'Id not found !';
$check_result = 0;
}
}
}
}
else{
if($_FILES["user-file"]["size"] > 1000000){
echo "<div class='server red bold'>File is Large</div>";
}
else{
echo "<div class='server red bold'> File Type is not Valid !</div>";
}
$check_result = 0;
}
?>
<script type="text/javascript">
window.top.window.upload_end(<?php echo $check_result; ?>);
</script>
</body>
</html>
现在，当我想检查我的代码，当我选择一个图像它工作良好，也当我选择其他文件类型，如:pdf, doc, srt， ....代码运行良好，会说:文件类型无效但只有当我选择mp3文件时，php-ajax-upload.php文件错误:
注意:未定义索引:customer_id在D:'Software'wamp'www'garanti'php-ajax-upload.php第7行
注意:未定义索引:user-file inD:'Software'wamp'www'garanti'php-ajax-upload.php on line 9
注意:未定义索引:user-file inD:'Software'wamp'www'garanti'php-ajax-upload.php on line 9
注意:未定义索引:user-file inD:'Software'wamp'www'garanti'php-ajax-upload.php on line 9
注意:未定义索引:user-file inD:'Software'wamp'www'garanti'php-ajax-upload.php on line 64
最后在页面末尾写着:
文件类型不合法!
我不知道为什么这个错误只会发生在mp3文件?
这听起来可能与你的php.ini设置有关。
我假设mp3文件比您尝试成功上传的任何其他文件都大。如果文件的大小大于php.ini设置post_max_size，那么PHP将从帖子中丢失数据，我认为这就是这里发生的事情。mp3文件可能已经上传，但是POST中的其他变量丢失了。
检查post_max_size，它的默认值是3Meg，您可能必须增加它。请记住，它将需要> upload_max_filesize，以确保您不会丢失这些其他POST变量。